Can anyone assist me to .....

After i close the Apache service then even the IIS server isn't working .. is ther in whatever way to operate IIS whn apache is install ....

Yes, you just need to have one of these listening on another port. Automatically IIS listens on Port 80, if port 80 is taken then it'll have troubles.

The simplest way is always to put apache on port 8080 and let IIS have 80... then http://localhost points to IIS and http://localhost:8080 points to apache.