My grandpa has recently bought a new Compaq computer with Windows 7 Home Premium 64-bit on it. He gets a lot of powerpoints in his email and so I installed the Powerpoint Viewer 2007 for him. It works right after doing a fresh install of it, but then shortly thereafter, it either won't launch at all, or it will show a "MSVCR80.dll was not found" error. MSVCR80.dll is on the computer, I've tried to regsvr32 it, but that gives me an error as well. Attached is a screenshot of the System control panel applet, as well as a MS Problem Steps Recorder zip of me installing the viewer. I am quite experienced with computers, but I think this has me confused because of it being 64-bit. I've never worked with the 64-bit system before now. Any help would be extremely appreciated. If we can fix this problem, perhaps the How-To Geek can write an article on how to fix it.
Here is the zip file: powerpoint problem.zip