Creo2 windchill server details

Folks,

anyone got any idea where Creo2 keeps its PLM server registration details?

Trying to resolve a situation where we want to stat Creo with or without Windchill registration depending on project. Have tried blowing away the PTC_WF_ROOT folder, the PTC_WF_CACHE folder, and also any reference to servers under AppData\PTC\Creo\Platform......

Have also tried deleting or replacing the 'active_server_config.fld' file in the PTC_WF_ROOT folder.

However when I launch Creao - it STILL knows what server I was regtered to and asks me to log in. This is what I am trying to prevent. The only waycan get it to forget about the server, is to go to server manager in Creo and delete the server.

Any suggestions welcome. Creo 2 M020.

Cheers

Simon Lucas