I'm having problems with VS 2008 and VSS 2005 (on Vista) when trying to check-in files. I have applied the CTP update, and re-registered tdnamespaceextension.dll. When I try to check-in a file (or project or solution..) the file simply doesn't check-in and the output from source control only says: ---- Operation started at time 19:49:24 ---- ---- Operation completed successfully at time 19:49:24 ---- still leaving the file(s) checked out. I also have VS 2005 installed and working with no problems. Any ideas would be greatly appreciated. Thanks! - mjOL