Randem Systems Support Board

The way to fix something like that is to either do a system restore or doing a SFC /Scannow to replace the system files with the original ones. You will also need to do a Windows Update to reupdate the files again.

It would be getting corrupted by someone forcing MDAC on a Vista/Windows 7 system because they don't understand that they shouldn't. That is the main reason MDAC on Vista/Windows 7 gets corrupted. Your application cannot fix this, just make sure it is not responsible for breaking it.

For some reason (unknown to me) MDAC is getting corrupted on certain windows 7 machines.  I searched online and I found many people facing the same issue, but with no easy solution (some suggest reinstalling windows or installing a service pack, which I am trying to avoid).

Ok, why would you need to update MDAC? it is already updated, it is part of the OS. Windows Update should be responsible to update the MDAC on Vista/Windows 7

Well, I have a .Net application (written in VB.NET) and the application uses ADO.NET to connect to an access database. In the past when we faced problems with MADC we would just ask the customer to install MDAC 2.8 (or any appropriate version) and it fixes the problem, unfortunately this does not work on Windows 7. From my understanding MDAC is now part of Windows Database Access components, which is an OS component and we have no easy way to update WDAC.

Sure it does. If your application supports JET 3.5 then it will install MDAC 2.0. What are you thinking of using it for? InnoScript can automatically adjust and put in a much smaller version of the OS updater that you can narrow down even further if you do not need JET 3.5 support.

As far as I know MDAC is included as a system component in Windows 7, this is why there is no separate setup to deploy MDAC on Windows 7 (you cannot install MDAC 2.8 on Windows 7).  
So my question is: does the OS Updater deploy any MDAC-related components on Windows 7?
 
Thanks,
Nad