I have hired a server a few days ago and it has Windows 2003 Web Server also it has Plesk 6.5 installed aswell.

I got the updates for plesk and installed them but after i installed them i cant connect to my servers internal ip address and to the sites on the server. i allways get a message which says ("Service Unavalible")

In my server now only the entrance port for plesk control panel and the plesk control panel itself is working in normal.

When i opened the ISS i viewed that "PSASystemAppPool" which is in "Application Pools" is stopped. When i start it nothing changes after the first reset i stops itself again. And allways im seeing the "Service Unavalible" message.

How can i fix this problem and please help me for this situation.

Thank You.