I have the same exact issue as this user:
I tried everything the tech suggested and the only thing that was different was that I can get into msconfig. So I was able to track down and kill some of the threat files on startup and remove others. However, I am still unable to edit the registry to create the association to execute exe files. I have the same problem as the user above did. The subfolders you mentioned don't exist and I am unable to import the .reg file successfully.
Unfortunately the user in the question above gave up and reformatted. Actually that doesn't sound like a bad idea. However, I need to grab about 10GB of data from the hard drive. I have a USB drive capable, but the pc does not recognize the drive. However, it does recognize the USB mouse and keyboard... I only need photo albums from the pc (.jpg files). I hope that those files are not infected. Even if I could, is it safe to transfer to the usb drive from the infected pc? I ask because I have data on the usb drive which I need and is important.
I also have a broadband connection available, but I'm hesitant to add it to my network... perhaps it would be okay to disconnect my home network and connect straight thru the modem? The reason I am suggesting this is because I can probably manage to ftp from the infected pc to a server. I'm not sure if this is safe either. Perhaps I can connect and drop all of the images in a site like snapfish or something?
Again, I don't mind reformatting this FUBAR'd pc, but I need to get these pics off as safe as possible. Your help would be appreciated.
BTW, I am fairly technical. Don't be afraid to open fire! ;-)