MDAC Setup – Installation Best Practices


– Terminate applications that use MDAC:

– Certificate Server

– Internet Explorer

– Internet Information Server

– Microsoft Office

– Outlook and Outlook Express

– SQL Server

– SMS Server

– Visual Studio (All Products)

– MDAC setup installs new data access DLLs and updates DLLs which already exist on the system.

– If one or more of those DLLs is in use by some other application, it can lead to unsuccessful MDAC setup.

– Some applications that use MDAC DLLs run in the background, so sometimes the user is not aware of their existence.

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