Trying to open a solution file from Visual SourceSafe 2005 directly from Visual Studio 2008, I got the above error.
Installing the previously mentions (older post) about a CTP to VSS, failed to solve this. So Goggling again made me encounter the below solution. Which made the error disappear.
- Download and install the CTP: Visual SourceSafe 2005 CTP Update
- Open cmd-prompt (admin priv.) and enter: regsvr32 “%programfiles%\Microsoft Visual SourceSafe\tdnamespaceextension.dll”
You are good to go and Visual Studio and VSS is working together again.
I’ve made this work by just “re-registering” the assembly using the regsvr32.exe utility as specified in step (2) above. VS and VSS works together after this.