I changed could in couldn't in the second paragraph.
aspnet_wp.exe COULD NOT get started... ;-)

When I try to start an ASP.NET application on my server, I get a standard
page telling me that the page isn't available at the time and that I can
get specific information in the system event log of my webserver.

When I go to the system event log of my webserver than I see that aspnet_wp.exe
couldn't get started. I think it has something to do with userrights or something.

Does anyone knows the answer on this one?

Thanks in advance.