This PC once had McAfee installed, but it was uninstalled and replaced with another security product…

Yet every time Microsoft outlook was started, it would generate the error:

mskolplg.dll could not be installed or loaded. This problem may be resolved by using Detect and Repair on the Help Menu.

The PCs owner tried, but just couldn’t figure out how to remove the message…

Funnily, outlook would still operate normally after the initial error.

A quick search of outlook found the solution:

From outllook:

Tools -> Options -> Other ->Advanced Options -> Add-In Manager

then untick any McAfee add-in, and ok to get out of the options window.

Restart outlook, and you shouldn’t get any more errors at startup.