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Error 1721/Windows Installer error
Hi, I didn't know where else to poste this. I also searched the forums & couldn't find a specific answer or resolution.
We've recently upgraded to Windows 7. I am trying to reinstall a program we have called HomeTech Advantage onto each computer. It's worked on 3 out of 5. The other two give me this error when running the setup file:
Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: DWUS_Unregister. C3A146F5_4B48_11D5_A819_00...
Support from the vendor is not available as we haven't renewed our support subscription. Any help would be GREATLY apprecaited, as I've already researched & tried several things to no avail.
Thanks in advance.