Un expected error usually happens when the required files for the WinKeyfinder are not present in the system, solution for this problem is to download these required files, please use the below information to find these files and install the files in your system
For VB5, get MSVBVM50.EXE from the Microsoft web site. The information and downloads are in the Knowledge base article Q180071.
For VB6, get VBRun60sp4.EXE from the Microsoft web site at Q235420 FILE: VBRun60sp4.exe Installs Visual Basic 6.0 SP4 Run-Time Files.
I hope the error will go away, after installing the required files for Winkeyfinder to run, how ever if you run into any trouble please use our
http://forums.winkeyfinder.com/ support (contact for help via contact us form) to report the errors