If you are having problems with 1.1.7 NoReg on the Server, when the server is running as a service, you will need to revert to 1.1.6. The 1.1.7 NoReg plugin has a bug that made it nearly impossible for the plugin to find the keyfile when running as a service. SORRY!
Sean
P.S. 1.1.6 is available on the OldStuff page:
http://msrc4plugin.home.comcast.net/oldstuff.html