John,

I don't think that the _olecalendar class is using mscal.ocx.

I checked with my client and it now seems that VFP installs the needed ocx file. All his machines are configured the same way, however, if we install VFP on one of the client machines then the error doesn't occur.

I'm going to see if I can fix the problem by creating an install routine using InstallShield.

However, any further suggestions would be most welcome.

Thanks again.

JLH