what did u change the connection string to?  are they valid (ie have u checked them from another applciation)?

This is valid connection string, and query logging works correctly before I stop sql sever service.

obviously it can't log to sql server if it's not running, so alternatives are to log to another server or like you say, put a dependency on the msolap service to tie it to the mssql service.  Here's a link to a reg hack that shows how to add the dependency. http://www.boyce.us/windows/servertipcontent.asp?ID=7

Seems to work...

Yaaa, that worked! 

Thanks, Steve

Ramunas Balukonis