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