Two versions of VSS in Registry

Dear friends,

My server has VSS problem and the event viewer told me "The activation of the CLSID {0B5A2C52-3EB9-470A-96E2-6C6D4570E40F} timed out waiting for the service VSS to stop".

I found some where that registry need to have only one record. But I have two versions of VSS, one is Version 1.0.0.1 and 1.0.0.7.

If I delete the old one, will it resolve the issue or harm the server? Please help.