Sorry I cant be more help, I am at a loss why that error would even come up. I did a google search on it, the program is made in old school VB6 and from what I can find it can happen when the runtimes for VB are messed up on the system.
If the system your trying to repair is that far gone perhaps a repair install is the best thing before you try a fresh install.
Do you know how to do a repair install?
Shane