I have installed the Geck fully in my Fallout New Vegas folder, but when I go to open it I get the error message:

"The program can't start because libvorbisfile.dll is missing from your computer. Try reinstalling the program to fix this problem."

I have reinstalled it multiple times in various locations with no success. Any assistance would be appreciate.

Thanks!

Make sure you have them in the correct folder.

Should be located at: program files\Steam\Steamapps\Common\ "fallout new vegas"

Just incase your mistaking, the file you download is NOT an installer. Its the geck itself. You just extract that to the file appointed by Orchish.