MDAC 2.8 RTM is incompatible with this version of Windows.

I just did a System Restore on my Sony VAIO, and re-installed SP2, which I had previously installed on the computer about 2 weeks ago.

Everything was going fairly well, until I re-installed a newsletter database program, eNewsletter Manager from

During the installation process, I got this message: MDAC 2.8 RTM is incompatible with this version of Windows. All its components are part of Windows.

In spite of the message, the software installed, but I cannot run it -- every time I try to open it, I get a "ding" sound, like an error message, but nothing on the screen, the whole system boogers up, and everything grinds to a crashing halt. I can barely even open the task manager, but when I do, I find the eNewsletter in there, under applications, and it says "not responding" - If I check the processes, it says it's eating up 100% of my CPU resources.

The funny thing is, I had this piece of software installed BEFORE installing SP2, and it worked fine. Then after installing SP2, it worked just fine too.

I did start having some other issues, though, including the Sony not recognizing my Maxtor External HD  *kicks the Sony and wanders off in search of the Hardware topic area*.
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TequilaMockingbirdAuthor Commented:
Is it necessary to uninstall a previous version before re-downloading and reinstalling? If so, how?
There are some instructions here to uninstall MDAC;en-us;q232060

But I don't think it should be necessary. The document will help you decide.
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just to add on to what DVation191 stated.

The MDac's are actually completly independent of each other.  When the developer creates the application that will be used MDAC, it is up to that developer which version to use.  THERORETICLY you can have all of them installed at the same time.
TequilaMockingbirdAuthor Commented:
Well, as it turned out, I didn't have to re-install anything. Another reboot seemed to solve the problem. But I'm giving you your points anyway, because that would have been my next step.
It's amazing how many things are fixed by a reboot! Thanks for the points.
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