missing msvbvm60.dll every time I reboot, why?

[opicka]

I wrote a program in VB6 and packaged it by using Microsoft's Package and Deployment Wizard - (so it contains all the DLLs)
After I installed my software on one computer with win98 (without VB6), it worked fine, but once I shut down my computer and tried to use the software again, I got an error message saying that msvbvm60.dll was missing. I know that I have it. I've installed vbrun60sp5.exe that has all the newest DLLs. The program works, but once I reboot, it stops working again. (I installed the program on other machines, and it worked fine)
Does anyone know what could cause this?

Thank you all for your help,
martin

ADDITIONAL INFO:
the msvbvm60.dll exists in c:\windows\system

I ran these two commands, they were both successful:
Regsvr32.exe /u msvbvm60.dll
Regsvr32.exe msvbvm60.dll
After running the above commands, the program still says that it's missing the DLL, even though the DLL is there.