Sunday, November 1, 2015

MAGOOSH GRE Preparation video course PACKAGE

The American education system requires a student to have completed 12 years of school education and an undergraduate study of four years before stepping into a Masters program. Those intending to continue education with postgraduate studies need to appear for the Graduate Record Examination or GRE. Scores earned in this examination helps universities determine merit, scholarship and fellowship grants for students, while some others use these scores to determine a cut-off point for applications.

Types of GRE Tests
There are two sets of tests that determine a student's overall GRE score.
  • General Test: This section evaluates students on the analytical, quantitative and verbal skills.
  • Subject Test: This section measures student's knowledge of a particular subject or set of subjects that they wish to pursue their higher education in.
Between these two, scores of the General Test hold greater weightage.

The Magoosh GRE preparation model works great for those prospective postgraduates who are looking at a more personalized experience in studying. Magoosh offers video lectures that allow students to listen and enjoy the privilege of visual lessons that make learning all the more interesting. At the end of every lesson, students are offered practice tests that cover all aspects, from basics to advanced practices. Besides, these tests also include a few questions with video representations that help students gain a deeper insight into the subject and improve their analytical skills. Since Magoosh offers GRE lessons over videos, there is also a provision made to clarify doubts. Students can email their questions to a team of experts at Magoosh and can receive answers at a quick turnaround time.

With the world going the mobile way and many students hooked onto Smartphones, Magoosh has made provisions to provide lessons over mobile phones too. This allows learning on the go and is especially useful for undergraduate students who travel long distances and can afford to utilize this time to prepare for the GRE Test.

Magoosh GRE's mock tests offer video explanations after every question. This method is not only engaging, but also ensures students understand the concept thoroughly, pushing them towards high percentile scores. Since Magoosh GRE lessons are primarily online, students are offered the facility to track their study schedule on the net. What is more, the GRE practice tests offered by Magoosh are timed and hence, offer students a real time experience, preparing them wholly for the D-day.


Tuesday, October 27, 2015

ملفات مساعدة لدارسي GRE TOFEL IELTS

English word speaking and accent and vocabulary and theory  حزمة اللغة الإنجليزية الشاملة

الحزمة الشاملة لتعلم الكلمات الانجليزية ونطقها واللهجة الأمريكية لكل المهتمين بأختبارات GRE TOFEL IELTS
الملف عبارة حزمة مضغوطة يحتوي علي الكتب المتخصصة بالإضافة للإسطوانات الصوتية المساعدة بحجم 2 قيقا دفعة واحدة للتحميل المباشر في الأسفل :






المحتويات :


ACCENT >
    American Accent Training - eBOOK + 5 audio CD's
    Improve Your American English Accent - eBOOK +3 audio CD's

THEORY >
    Million dollar vocabulary 6 hours in 12 audio files listening materials

VOCABULARY >
    Barron A-Z Audio Wordlist 8 hours in 13 audio files spoken words
    Barron's 550 words 23 audio files with documentaion
    English Vocabulary 5000 Ivy League eBOOK + 8 Audio CD's
    Vocabulary Booster 2 eBOOK volume I&II + 2 Audio CD's
    Word Master 100 audio files with word list documents

تحميل Download 

Sunday, October 25, 2015

Test of English as a Foreign Language TOFEL برنامج الاستعداد والدليل الرسمي لإختبار


Test of English as a Foreign Language (TOEFL) is a standardized test of English language ability for non-native speakers wishing to enroll in American universities. The test is accepted by many English-speaking academic and professional institutions. TOEFL is one of the two major English-language tests in the world, the other being the IELTS.

توفل هي اختبارات عامة لمهارات وقدرات اللغة الإنجليزية مطلوبة للملتحقين بالجامعات الأمريكية ويتم قبول الحاصلين علي شهادات الإختبار من قبل العديد من المعاهد والمؤسسات الأكاديمية والإحترافية وهو واحد من أهم أختبارين للغة الإنجليزية في العالم الإختبار الآخر هو ال IELTS
تحتوي الحزمة علي برنامج يتم تسطيبه بشكل عادي علي الكمبيوتر وفتحه وإختيار الدروس والممارسات العملية التفاعلية ... التحميل في الأسفل 



التحميل من هنا Download Here 

GRE Gradute Record Examination ملفات وكتب وفيديو وصوتيات للتجهيز لأمتحان GRE

Graduate Record Examinations GRE

The Graduate Record Examination (GRE) is a standardized test that is an admissions requirement for most graduate schools in the United States.[7] Created and administered by Educational Testing Service (ETS) in 1949,[8] the exam aims to measure verbal reasoning, quantitative reasoning, analytical writing, and critical thinking skills that have been acquired over a long period of time and that are not related to any specific field of study. The GRE General Test is offered as a computer-based exam administered at Prometric testing centers.

هي عبارة عن سلسلة أختبارات تجهيزية مطلوبة لدي الدارسين والخريجين الراغبين باالدراسة في الولايات المتحدة والشهادات العالمية في مجالات متعددة لتحقيق الآتي:
  • قياس المنطق اللفظي
  • قياس المنطق الكمي
  • قياس الكتابة التحليلية
  • ومهارات التفكير النقدي التي تم الحصول عليها على مدى فترة طويلة من الزمن والتي لا علاقة لها  مع أي حقل معين من الدراسة
تحتوي الملفات علي العديد من الكتب والإختبارات السابقة بالإضافة الي حزم تعليمية مع وسائط متعددة كالفيديو الصوتيات وغيرها .... التحميل في الأسفل 






Download تحميل الملف من هنا

Sunday, March 29, 2015

OPNET MODELER 14.5 PROJECT MODEL FILES

Here i will share are OPNET modeler projects model files i had : 

Project 1: IMS in the opnet need to configure the model package, sip and umts for studying such an important role in 3g networks. 

Friday, March 27, 2015

32 Files PDFs scintific papers, pesentations, and Documents in WiMax, OPNET modeler, Wireless networks, and Communication engineering

File 1 : wireless_module.pdf
file://C:\Program Files\OPNET\14.5.A\doc\modeler\ModTut\ModTut-06-1.html
OPNET modeler Tutorial : Creating a Wireless Network in opnet  > Using the Time Controller

File 2: wimaxMAC.pdf
Paper : A software WiMAX medium access control layer using massively multithreaded processors
IBM J. RES. & DEV. VOL. 54 NO. 1 PAPER 9 JANUARY/FEBRUARY 2010


File 3: tut_wireless.pdf
OPNET modeler Tutorial : Creating a Wireless Network
(this file is duplicated as file 1 :) ) 

File 4: Selected_Topics_in_WiMAX.pdf  (BOOK)
On MU-MIMO Precoding Techniques for WiMAX
PAPR Reduction in WiMAX System
A Mobile WiMAX Mesh Network with Routing Techniques and Quality of Service Mechanisms
Hybrid AHP and TOPSIS Methods Based  Cell Selection (HATCS) Scheme for Mobile WiMAX
EAP-CRA for WiMAX, WLAN and 4G LTE Interoperability
Key Management in Mobile WiMAX Networks


File 5: Opnetwork2011_paul_lally_final_2.pdf
PAPER: Simulation and Performance Evaluation of WiFi and WiMAX using OPNET
Ravinder Paul, Sukhchandan Lally, and Ljiljana Trajković
Simon Fraser University
Vancouver, British Columbia
Canada

File 6: OpnetTu.pdf
Presentation Tutorials: Simulating Computer Networks with Opnet for beginners.

File 7&8: Opnet_esittely_07-08.pdf
Presentation Tutorials: Simulations and Tools for Telecommunications 521365S: OPNET - Network

Simulator

File 9:
Full Report: Implementation of a WiMAX simulator in Simulink
Ausgeführt zum Zwecke der Erlangung des akademischen Grades eines
Diplom-Ingenieurs unter Leitung von
Univ.Prof. Dipl.-Ing. Dr.techn. Markus Rupp
Dipl.-Ing. Christian Mehlführer

File 10: FULLTEXT01_4.pdf
Full Report: Analyzing IP/MPLS as Fault Tolerant Network Architecture
Examensarbete utfört i Informationskodning
vid Tekniska Högskolan i Linköping av Muhammad Roohan Kebria

File 11: af_final_project_2.pdf
Full Report: OPNET Simulation of IEEE 802.11(WiFi) and
IEEE 802.16(WiMAX) in a small area
 
Azadeh Farzin

File 12: [Emad_Aboelela]_Network_Simulation_Experiments_Man(BookZZ.org).pdf
BOOK: NETWORK SIMULATION EXPERIMENTS MANUAL
Prepared by Emad Aboelela, Ph.D.
University of Massachusetts Dartmouth

File 13: 427project-final.pdf
ENSC 427: COMMUNICATION NETWORKS
Video and Voice Backup over Mobile WiMAX

File 14:0812wmn15.pdf 
PAPER: VERTICAL HANDOFF IN WLAN-WIMAX-LTE HETEROGENEOUS NETWORKS THROUGH GATEWAY RELOCATION
L. Nithyanandan and I. Parthiban
Department of Electronics and Communication Engineering,                  
Pondicherry Engineering College, Puducherry, India
International Journal of Wireless & Mobile Networks (IJWMN) Vol. 4, No. 4, August 2012

File 15: 1003.1479.pdf
PAPER: Analysis, Modification, and Implementation(AMI) of Scheduling Algorithm for the IEEE 802.116e (Mobile WiMAX)
(IJCSIS) International Journal of Computer Science and Information Security,Vol. 7, No. 2, 2010
C. Ravichandiran , Dr. C. Pethuru Raj, Dr. V. Vaidhyanathan

File 16: 1004.4583.pdf
PAPER: Measuring Data and VoIP Traffic in WiMAX Networks
Iwan Adhicandra
JOURNAL OF TELECOMMUNICATIONS, VOLUME 2, ISSUE 1, APRIL 2010

File 17: 1571_pres.pdf
Persentation restricted session : Session 1571
Planning WiMAX Network Deployments
R&D Solutions for Commercial and Defense Networks

File 18: 1603.952.pdf
WiMAX-RBDS-Sim: An OPNET Simulation Framework for IEEE 802.16 Mesh Networks
Gustavo Vejarano , Janise McNair
SIMUTools 2010 March 15-19, Torremolinos, Malaga, Spain.
Copyright 2010 ICST 78-963-9799-87-5

File 19: Abhishek+(1).pdf
Full Report: VERTICAL AND HORIZONTAL HANDOVER IN HETEROGENEOUS WIRELESS NETWORKS
MASTER OF ENGINEERING IN ELECTRONICS AND COMMUNICATION ENGINEERING

Submitted By: Abhishek Dhiman

File 20: article1380788712_Khan et al.pdf
PAPER: Interworking between WiMAX and UMTS to provide seamless services
M. M. A. Khan*, M. F. B. Ismail and K Dimyati
International Journal of the Physical Sciences Vol. 5(6), pp. 852-864, June, 2010

File 21: fatema_shaikh_final_thesis.pdf
PAPER: Intelligent Proactive Handover and QoS Management using TBVH in Heterogeneous Networks
BY: Fatema Sabeen Shaikh

File 22: IJCNS_paper9.pdf
PAPER: Seamless Handover between UMTS and GPRS
Mushtaq Md. Arman Khan and Mohd Faizal Bin Ismail
International Journal of Communication Network and Security
(IJCNS), Vol-1, Issue-3 ISSN: 2231

-1882

File 23: IJECET 2013.pdf
PAPER: PERFORMANCE AND HANDOFF EVALUATION OF HETEROGENEOUS WIRELESS NETWORKS (HWNS) USING OPNET SIMULATOR
Dheyaa Jasim Kadhim , Sanaa Shaker Abed 
Electrical Engineering Department, University of Baghdad
INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATION ENGINEERING & TECHNOLOGY (IJECET)

File 24: IJPTT-V3I4P14.pdf
PAPER: Simulation of Physical layer of WiMAX Network using OPNET Modeller
Narendra Bagoria, Anita Garhwal, Anurag Sharma
International Journal of P2P Network Trends and Technology (IJPTT) - Volume3 Issue4- May 2013

File 25: IJRET_110319137.pdf
PAPER: MOBILITY MANAGEMENT IN HETEROGENEOUS WIRELESS NETWORKS
G. Zayaraz, J. Kanchana Devi, V. Vijayalakshmi, V. Hemamalini
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308

File 26: Karl_Andersson_Doc2010.pdf
DOCTORAL  THESIS : On Access Network Selection Models and Mobility Support in Heterogeneous
Wireless Networks
BY: Karl Andersson

File 27: Opnetwork2011_al-rousan_altrad_final.pdf
PAPER: Dual-Trigger Handover Algorithm for WiMAX Technology
Nabil Al-Rousan, Omar Altrad, and Ljiljana Trajković
Simon Fraser University

File 28: Simulations_of_WiMAX_using_OPNET_Simulator.pdf
Presentation: ENSC 895: Communication Networks: Final Project Presentation
Simulations of WiMAX using OPNET Simulator
BY: Sukhchandan Lally

File 29: Thesis.pdf
Thesis: INVESTIGATION OF HANDOVERS IN 3G UMTS TRAFFIC CLASSES
Maqsood Muhammad Khan, Muhammad Saad Khan

File 30: V3I11-0178.pdf
PAPER: Performance Analysis of a Mobile WiMAX Network in Node Mobility under Different Scenarios
Jupinder Singh Sachin Majithia
International Journal of Advanced Research in Computer Science and Software Engineering
Volume 3, Issue 11, November 2013 ISSN: 2277 128X

File 31: v6-3933-3945.pdf
PAPER: Simulation Model to Improve QoS Performance over Fixed WiMAX using OPNET
Ibrahim A. Lawal, Abas Md Said and Abubakar Aminu Mu’azu
Department of Computer and Information Sciences, Universiti Teknologi PETRONAS Seri Iskandar,
Tronoh 31750, Perak, Malaysia
Research Journal of Applied Sciences, Engineering and Technology 6(21): 3933-3945, 2013
ISSN: 2040-7459; e-ISSN: 2040-7467 © Maxwell Scientific Organization, 2013

File 32: WiMAXLab2withjharakeshnetworks.com.pdf
Opnet resticted Presentation session: Session 1579
*** Understanding WiMAX Model Internals and Interfaces *** (Network R&D)
if you want a good reference on WIMAX in OPNET start with this present



HERE IS the LINK to DoWnLoAd All these FILES as 7z File

Password is : http://kabtintech.blogspot.com/ 

Wednesday, March 25, 2015

No Jailbreak Required: How To Gain Full Root Access On iPhone 4 Running iOS 7 Beta

If you’re running iOS 7 beta, you’ve given up the right to a jailbreak if you don’t have any other eligable iOS devices. Unfortunately, there’s no jailbreak for iOS 7 beta, and even after its official release, it may be a while before we see one.
The good news is, if you happened to have an iPhone 4, there’s now a way to gain full r/w root access with iOS 7 beta installed. While this isn’t a jailbreak, it’s the next best thing to be able to explore all of the root files on your device and make changes as you see fit.
I’m not a developer or a hacker, but I’ll explain this process in a way that should be easy to understand. We’ve been provided instructions (original source via NmUn on iFans) on how to enable acf2 on an iPhone 4 running iOS 7 beta 1, and we’re sharing it with you today. Remember, this requires that you have an iPhone 4. Unfortunately, this method will not work on any A5+ devices. If you meet that requirement, and you’re running iOS 7 beta, continue on with this tutorial. This process will work on OS X or Windows and has been tested with iOS 7 beta 1.
You’ll need the following applications to get started:
We’ve put together a detailed video tutorial of this method in action. As shown in the video and explained below, this method will give you full read and write access to the iPhone’s root file system.
If you can’t see the above video, please click this link.
Below you’ll find written steps for this process:
Step 1: Download MSFTGuy’s SSH RAMDisk tool here and follow the instructions. You’ll need to put the iPhone 4 into DFU mode. Watch the video above for clarification or click here for instructions.
MSFTGuy’s SSH RAMDisk tool.
As our source notes:
If the RAMDisk tool has the init mux error, you need Java 6 update 35 for 32bit. So look it up and install it. You’ll also need to remove Java 7 for 32bit for it to use Java 6. If you’re on a 64bit PC just install Java 7 64bit and uninstall the Java 7 32bit.
RAMDisk tool successful.
Step 2: Launch CyberDuck or WinSCP and connect to localhost on port 2022 with the username “root” and the password “alpine.” (Both entered without the quotation marks.)
Step 3: Open a terminal window using the SSH connection. Most SSH clients will have a dedicated button for this. If you’re unsure of the process check the video or read through the help section for your SSH client. Within Terminal type in the command “mount.sh” and press enter.
If this is successful you should see the following:
Mounting /dev/disk0s1s1 on /mnt1
Mounting /dev/disk0s1s2 on /mnt2
Now you can close the terminal window.
Step 4: Within the SSH client, navigate to /mnt1/etc and look for a file named “fstab” in that folder. Make a copy of fstab on your desktop and change the name of the file on the device to “fstab.old” without the quotation marks.
Step 5.
Step 5: Open the fstab file on your desktop using TextEdit or NotePad depending on your operating system. Within this file, you’re going to need to change something in the first line. Change “/dev/disk0s1s1 / hfs ro 0 1″ to read “/dev/disk0s1s1 / hfs rw 0 1″ omitting the quotation marks. Once you’re finished, save the file and copy it back to the device. Make sure you set its permissions to 0644.
Step 6: Navigate to /mnt1/System/Library/Lockdown and copy the “Services.plist” file to your desktop. Next, change the name of the file on the device to “Services.plist.old” without the quotation marks.
Step 7: Open the Services.plist in your preferred binary plist editor and add the following (plain text via Pastie.org found here) entries below the “com.apple.afc” section:
<key>com.apple.afc2</key>
<dict>
<key>AllowUnactivatedService</key>
<true/>
<key>Label</key>
<string>com.apple.afc2</string>
<key>ProgramArguments</key>
<array>
<string>/usr/libexec/afcd</string>
<string>–lockdown</string>
<string>-d</string>
<string>/</string>
</array>
</dict>
Next, save the plist file and copy it back to your device. Make sure that you set its permissions to 0644.
When you’re done with step 7, it should look like this.
Step 8: Launch a new terminal window through the SSH client and type “halt” (without the quotation marks) and press enter. The device will turn off and start back up in Recovery Mode. Note: You may need to manually turn on the device.
Use TinyUmbrella to exit Recovery Mode.
Step 9: Launch TinyUmbrella, select your device from the list on the left side of the application, and click on “Exit Recovery.” Your device should restart and boot into iOS 7.
Full root access in iOS 7.
Launch iFunBox and check the status of your device on the left side. If you don’t see “Jailed” next to your device name and iOS version, the process is complete. You’ll know have full r/w access to root files on your iPhone 4. Keep in mind, you can really mess up a device by playing around with files in the root directory. If something goes wrong, you always have the option to restore the device with iTunes.

HOW TO: SSH Into Your iPhone, iPad and iPod Touch Running iOS 7 [ Mac & Windows ]

how-to-SSH-FSMdotCOMNow that your device is jailbroken, you can SSH into it to transfer and edit files. SSHing will give you full access to all the files stored on your device. Before we proceed with the tutorial let’s see what SSH or Secure Shell is: a cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services between two networked computers that connects, via a secure channel over an insecure network, a server and a client (running SSH server and SSH client programs, respectively).
Jump over the break to learn how to SSH into your iPhone, iPad or iPod touch…
You need:
1. A jailbroken iOS device – learn how to jailbreak your device here.
2. FileZilla – works on both Mac and Windows ( or any other SFTP client )

HOW TO: ( note: the process is exactly the same on both Mac OS X and Windows )
1. Download FileZilla and install
2. On your iOS device, load Cydia and install OpenSSH
openssh-cydia-FSMdotCOM
3. !!! IMPORTANT !!! once OpenSSH is installed, you need to change your root and mobile passwords. Learn why and how to do it here.
4. Make sure your iOS device is on the same WiFi network as your computer and load FIleZilla
5. In the upper right corner complete the fields ( as shown in the screenshot below ):
  • Host: your device’s IP address ( see Settings>Wifi )
  • Username: root
  • Password: your new password ( see step 3 )
  • Port: 22
ssh-1-FSMdotCOM
6. Click on “Quickconnect”. You will be prompted with a message. Click OK ( you can also tick the box where it says  “always trust this host” so you won’t be prompted with this message every time you SSH into your device – also you can add this connection to your FileZilla’s favorites for quick access )
ssh-2-FSMdotCOM7. In a few seconds you will be connected to your device.
ssh-3-FSMdotCOM8. That’s it. You’re done. Now just be careful. Deleting stuff may result in bricking your device. On the other hand it can also help you unbrick your device. ALWAYS BACK UP YOUR FILES !

WORKING SOLUTION FOR IPHONE / IPAD ICLOUD BYPASS FROM ICLOUDDNSBYPASS.COM

WORKING SOLUTION FOR IPHONE / IPAD ICLOUD BYPASS FROM ICLOUDDNSBYPASS.COM



iCloud Bypass DNS server

There is an awesome solution for all iPhone users who are impatiently waiting for full Activation Lock bypass and wish to use their smartphone at the same time. Being stuck on iCloud Activation Lock on iOS 7 and iOS 8 is not fun at all. Sometimes you forget your passcode, sometimes you just cannot contact the reseller of the used gadget you purchased online. There are a lot of reasons for getting stuck and one cool solution which allows you to bypass iCloud activation on iPhone 5 / 5S / 5c / 4S / 4 / 6 and 6 Plus, iPad, iPad 2, iPad 3 and all iPod Touch models by connection your device to special server. Developer July Ighor from Ukraine lets users use the DNS server at 78.109.17.60 to stop being locked completely. This solution is using DNS method (like SiriProxy Server)  because of better device connection speed.
You cannot make phone calls, play games and launch applications since you don’t have the passcode and this is why you need any iCloud Activation bypass tool that can entertain you for a while. Please, note that this is just a temporary solution. Still it takes time to finish the procedure and to make your wait funner you can use the DNS server offered by the Ukrainian dev. This unique iCloud Activation Lock bypass DNS server is used by over 51,000 gadgets so far.

WHY MOST PEOPLE USE ICLOUD DNS BYPASS SERVER BY JULY IGHOR

  1. Here some features which are only available when using this server: listen to radio, music, record videos, take images and watch videos, browse web, use Socials Apps, etc;
  2. This server supports all versions of iOS firmware and all iPhone and iPad models (included blacklisted devices);
  3. Server is using C++ code. It is very strong and powerful as it can allow thousands of gadgets to connect with only about 2 percent of CPU load;
  4. Server is using DNS routing instead of Proxy method (mostly used by other bypass activation lock servers) which is much more faster;
  5. No extra software needed to Bypass activation lock;

HOW TO BYPASS ICLOUD LOCK ON ANY IPHONE OR IPAD BY USING ICLOUDDNSBYPASS.COM

Step 1. Click on Home button of the activation locked device. Select “More Wi-Fi Settings” and click on the ‘i’ icon that appears under Wi-Fi.
iCloud Bypass Step one

Step 3-4. Check your DNS settings field and enter: 78.109.17.60 (delete any previous DNS ettings)
DNS settings iphone

Step 5. Now click on Activation Help link and wait till you see “Hello” message from server.
iCloud Bybass activate
Step 6. Start using some of the options that weren’t available to you before.
Step 7. (optional) If you want to browse web from your device please enter following to DNS settings field as shown on step 2:
78.109.17.60, 78.109.17.60, 8.8.8.8
iCloud Bypass DNS Server
NOTES: In case you cannot connect to this server you need to reboot a couple of times. If reboot doesn’t solve the problem it means that your internet provider doesn’t allow you connecting to custom DNS servers. In this case please download iCloud DNS bypass Server GUI and install in to your PC.
This is a great iCloud Activation Lock bypass tool that supports only Windows platform at the moment. At the same time it is available in a lot of foreign languages so you might find your native menu to make the experience much easier and comfortable.
Personally I find this server the best available iCloud bypass solution at the moment. Please feel free to comment your opinion bellow.

Sunday, March 22, 2015

OPNET modeler 14.5 installation guide (WIN XP, 7, 8) (VS 2005,2010,2012)

OPNET modeler 14.5 installation guide
(WIN XP, 7, 8) (VS 2005,2010,2012)


Prerequisites & Requirement software:

1-    Microsoft visual studio: vs2005 for win xp & vista / vs2010 for win 7 / vs2012 for win 8
-         Microsoft visual studio should be installed for running discrete event simulation of opnet projects and for compilation process of the C++ files used by OPNET.
2-    Opnet sources: modeler setup, models setup, documentation setup, and license maker setup.


Setup Environmental variables manually:


·        These are the environmental variables that should be configured or added manually by the method used below:
To add these environmental variables go to (My computer) right click and choose (properties) then from the left up screen choose (advanced system settings) then click on (Environmental variables) then from system variables select (new) to add the variables.

Then copy each variable name and value from the text file or from the tables below and paste them into the new system variable referred by the number 6 in the figure before according to the machine word architecture and the visual studio architecture.
For win7-32bit or 64 or win8 select the specific text files which contains the right paths for the variables to configure the compiler probably. As shown in the tables below:
(these text files can be downloaded from the links in the bottom of this page)


Table 1. For visual studio 2010 in 32-bit machine & 32-bit VS, add these environmental variables:
Variable Name
Variable Value
Path
C:\Program Files\Microsoft Visual Studio 10.0\VC\bin\;C:\Windows\Microsoft.NET\Fr­amework\v3.5\;C:\Windows\Microsoft.NET\F­ramework\v2.0.50727\;C:\Program Files\Microsoft Visual Studio 10.0\VC\vcpackages\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\;C:\Program Files\Microsoft SDKs\Windows\v7.0A\Bin\
INCLUDE
C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\include;C:\Program Files\Microsoft Visual Studio 10.0\VC\include\;C:\Program Files\Microsoft SDKs\Windows\v7.0A\include\;C:\Program Files\Microsoft Visual Studio 10.0\DIA SDK\include\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\En­tity Framework Tools\Templates\include\
LIB
C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\lib\;C:\Program Files\Microsoft SDKs\Windows\v7.0A\include\;C:\Program Files\Microsoft Visual Studio 10.0\DIA SDK\lib\;C:\Program Files\Microsoft Visual Studio 10.0\VC\lib\
LIBPATH
C:\Windows\Microsoft.NET\Framework\v3.5\­;C:\Windows\Microsoft.NET\Framework\v2.0­.50727\;C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\lib\;C:\Program Files\Microsoft Visual Studio 10.0\VC\lib\;C:\Program Files\Microsoft Visual Studio 10.0\DIA SDK\include\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\En­tity Framework Tools\Templates\include\
Framework35Version
v3.5
DevEnvDir
C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\
FrameworkDir
C:\Windows\Microsoft.NET\Framework\
FrameworkVersion
v2.0.50727
VCINSTALLDIR
C:\Program Files\Microsoft Visual Studio 10.0\VC\
VS100COMNTOOLS
C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\
VSINSTALLDIR
C:\Program Files\Microsoft Visual Studio 10.0\
WindowsSdkDir
C:\Program Files\Microsoft SDKs\Windows\v7.0A\

Table 2. For visual studio 2010 in 64-bit machine & 32-bit VS, add these environmental variables:
Variable Name
Variable Value
Path
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\;C:\Windows\Microsoft.NET\Fr­amework\v3.5\;C:\Windows\Microsoft.NET\F­ramework\v2.0.50727\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcpackages\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\
INCLUDE
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\atlmfc\include;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\DIA SDK\include\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\En­tity Framework Tools\Templates\include\
LIB
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\atlmfc\lib\;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\DIA SDK\lib\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\
LIBPATH
C:\Windows\Microsoft.NET\Framework\v3.5\­;C:\Windows\Microsoft.NET\Framework\v2.0­.50727\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\atlmfc\lib\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\DIA SDK\include\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\En­tity Framework Tools\Templates\include\
Framework35Version
v3.5
DevEnvDir
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\
FrameworkDir
C:\Windows\Microsoft.NET\Framework\
FrameworkVersion
v2.0.50727
VCINSTALLDIR
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\
VS100COMNTOOLS
C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\
VSINSTALLDIR
C:\Program Files (x86)\Microsoft Visual Studio 10.0\
WindowsSdkDir
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\
·         The difference in the programs file path should include (x86) if the Visual studio is 32-bit running in 64-bit machine and this will only run the OPNET 32-bit version if the machine is 64-bit and the VS is 64-bit also the use Table (3) and it will run OPNET 64-bit.

Table 3. For visual studio 2012 in 64-bit machine & 32-bit VS, add these environmental variables:
Variable Name
Variable Value
Path
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\;C:\Windows\Microsoft.NET\Fr­amework\v3.5\;C:\Windows\Microsoft.NET\F­ramework\v2.0.50727\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcpackages\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\Tools\;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\
INCLUDE
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\atlmfc\include;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\;C:\Program Files (x86)\Windows Kits\8.0\Include\um\;C:\Program Files (x86)\Windows Kits\8.0\Include\shared\
LIB
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\atlmfc\lib\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\lib;C:\Program Files (x86)\Windows Kits\8.0\Lib\win8\um\x86\
LIBPATH
C:\Windows\Microsoft.NET\Framework\v3.5\­;C:\Windows\Microsoft.NET\Framework\v2.0­.50727\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\atlmfc\lib\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\lib\
Framework35Version
v3.5
DevEnvDir
C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\
FrameworkDir
C:\Windows\Microsoft.NET\Framework\
FrameworkVersion
v2.0.50727
VCINSTALLDIR
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\
VS100COMNTOOLS
C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\Tools\
VSINSTALLDIR
C:\Program Files (x86)\Microsoft Visual Studio 11.0\
WindowsSdkDir
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\
·         The difference here is in the visual studio version for VS2012 it's 11.0. if you use visual studio 64-bit in 64-bit machine then you should remove (x86) and use the 64-bit OPNET, use this table as it;  if the Visual studio 2012 is 32-bit running in 64-bit machine and this will only run the OPNET 32-bit version.

UPDATE !!! 

Here also i had create the environmental variable scripts to make all the pain easily just download and run the scripts as an administrator :