Hi jtborger-
As gkellum said, we don't have any older installers that were ever explicitly tested on Windows XP.
I'm guessing this is the latest version of Blackhole on our website that you are trying to run? If so, this error messages is possibly caused because the C++ runtime library is not installed correctly on your system. The Blackhole installer should have installed it, but if something went wrong, you could try downloading and installing it here: https://www.microsoft.com/en-us/download/details.aspx?id=40784
Apart from that, I'm afraid we can't offer much more assistance.
Best,
Tom
