This error is fixed in ListPro 5.1 for Windows. You can download the latest version here. When you register a ListPro trial version on Windows Vista or Windows 7, you may see: "Registration info could…

ListPro 5.0 is not designed to run on Windows 2000, and only officially supports Windows XP or higher. If you try to run ListPro on Windows 2000, you may receive this error: "The dynamic link library…

This error can mean many different things, but most likely you have run out of space in one of your lists or in your .CLF file containing your lists. The first thing to do if you receive "invalid block…