Can anyone say me how to start Integration Server.

welcome to wMUsers!!

Here is the command for IS start up:

From Windows:your IS path/IntegrationServer/bin/start.bat
From unix:your IS full path\IntegrationServer\bin\sh server.sh

If you IS install on default port then Open a browser check it constantly until the IS Admin page username/password popup shows up:

http://servername or localhost:5555/