Installation problem: Error 430 - Class does not support automation ...

[BruceG]

Background:
My machine is running Win 98 with VB6 Pro and SP4.
I compiled the project and created a setup routine with Install Shield Express 2.13.

After running the setup on one user's machine who also had Win 98 with VB6/SP4 produced no problems when she ran the program.

After running the setup on another user's machine (a 486 with Win 95, no VB) caused the following problem when she tried to run my app:

Error 430 - "Class does not support automation or does not support expected interface."

Any ideas as to what could be causing this? Thanks for your help.

[jbart]

Look at this thread:

http://forums.vb-world.net/showthrea...threadid=28881

Service Pack 4 puts MDAC 2.5 on the PC. The new VB executable will be looking for it on the client PC's.

Or you can change the Reference in your project back to ADO 2.1 and recompile.

[BruceG]

Thanks, jbart. I'll give it a shot.

[BruceG]

I'm still not having any luck. This project does not use ADO, but DAO 3.6. Would something other than MDAC/ADO cause this problem?

[jbart]

I only use ADO and know that re-compiling back to the previous version of ADO worked in my case. You might try searching for Error 430 on Microsoft's web site. There are several situations that will generate that error message.

You could try copying the latest mdac_typ.exe file to the client machine and run the exe to install the update. I would try that last though, since I am still not sure what all MDAC 2.5 does.

Good luck !