VISUAL C #
http://www.microsoft.com/visualstudio/en-us/products/2010-editions/visual-csharp-express
FLEXSIM
http://www.4shared.com/file/qkScgYJG/Flexsim_432.htm
Netbeans
For Php select the last but one option in the below page if u wan all then select the last one
http://netbeans.org/downloads/index.html
WampServer
http://www.wampserver.com/en/download.php
Required to run php / html/ css/ js etc
Steps to Run
*Install it n run it
*Rt click on the icon "W" at ur right bottom of ur screen and select "start all services"
*Go to My Documents > Netbeans Projects and copy ur project folder and
*Go to C drive> Wamp > www > paste your Project.
*Open your Netbeans and select open Project > C drive> Wamp > www > Project folder
*Click open n compile n run
Note: Next time while creating project : File > New Project > Php and click next there in
sources folder change the path to c:\wamp\www\PROJECT NAME , to avoid the shifting of folder .
PERL
Download Perl
http://www.perl.org/get.html
UBUNTU
Download Ubuntu
http://www.ubuntu.com/desktop/get-ubuntu/download
NETWORK SIMULATOR
http://www.wix.com/niti45/bvb#!installation