Security Now! Notes for Episode #20: "regsvr32 -u shimgvw.dll" This is from Steve Gibson from www.GRC.com
This fix is temporary, until Microsoft comes out with a patch Steve has an undo for it if it breaks anything.
To immediately disable the vulnerable Windows component:
Logon as a user with full administrative rights.
Click the Windows "Start" button and select "Run..."
Enter the following string into the "Open" field:
regsvr32 -u shimgvw.dll
(You can copy/paste from this page using Ctrl-C/Ctrl-V)
Click "OK" to unregister the vulnerable DLL.
If all goes well, you will receive a confirmation prompt, and your system is now safe. No need to reboot, but you might want to just to be sure that any possible currently loaded instance is flushed out.