Windows Vista and a rogue program.

So I was helping somebody test out their Logitech Webcam. Downloaded and installed their software off of logitech website. Didn't check to see if it was Vista compatible first... I went to uninstall the software and something went bonkers. Now when I open My Computer or other explorer.exe windows I get an error message of LNamespc.dll not found. Things are malfunctioning. Windows Installer opens when I try to open my CRM program. Runs my CPU up to 100%, just spooling and freezes everything. I even tried re-downloding the software and doing a clean uninstall...yea, that didn't work. If anyone has any ideas that would be great. I'm at a loss other than to save my stuff and start out new to get rid of this weirdness.

LNamespc.dll Logitech QuickCam file actual file name is lnamesp2.dll

Actually the number one best solution would be system restore, to a date/time before the WebCam was installed

I would be interested in what experts-exchange have to say !!! Actually not really