I use a control that has this problem, I have to manually register it using regsrv32.exe. I don't know what msacal70.ocx is--maybe it's similar?

>I have a customer that is trying to install my application and it gets to the end of the process and then states "MSACAL70.OCX - Unable to register itself in the stystem registry".
>
>I try the same setup on different machines around the office and do not get this error.
>