I'm trying to install and run Visual C++ 2005 Express Edition so that I can build legacy software. I have the original installer, and was able to install VC++ 2005 in Windows 8.1 without any problems (other than the compatibility warning messages from Windows). Unfortunately, the registration link in the software leads to a 404 page on micosoft.com.
Am I just completely out of luck? Or is there some other way to get a valid registration key?