Obviously best practice would be to setup TM1 to run as a service but sometimes you need to setup a TM1 server to run as a desktop shortcut you can double click on to start.
In windows 2008 though the security setup is a bit more strict than previous versions. If you just double click the shortcut you will likely get errors about logging or missing files and the server won't start even though everything looks fine in the cfg file etc.
The trick is to right click the shortcut and select to "Run as Administrator" and everything will start as normal.