Originally Posted by lurkswithin

More than likely you have some fouled up DLL files. This can be caused by the uninstalling of certain types of software that attach themselves to other programs...like a parasite.

You need to run clean up programs and clean all the crap out.
then do a registry cleaner (Ccleaner) then run your anti-virus programs to make sure you have nothing hiding. Defrag the computer and once that is done......
start > run and type

sfc /scannow
(notice the space before the slash mark)

press enter and let the system file checker do its thing.

If that doesn't do it then a removal and reinstallation of the program may be required.