Original Post — Direct link
I had a problem launching Anno 1800 and I found a fix for myself after 2days of relentless internet search so I thought I might share it with everyone.

When I first installed Anno 1800 I got the message saying that I do not have mfreadwrite.dll.

My mistake was downloading this .dll file separately.


DO NOT DOWNLOAD THIS DLL SEPARATELY


Download Windows Media Features from the internet according to your Windows version and install it.

Mine was Windows Pro N version 20H2, (The latest update so far) and I cannot download it from the web as there is no Windows Media Features available for download for that particular windows version.

If this is the case, go to:

Settings > Apps > Apps and Features > Optional Features > Add a Feature and find the Media Feature Pack in the list of available Optional Features and do a reboot.

This fixed the issue for me and I hope it does the same for everyone suffering from this issue.
about 4 years ago - Ubi-Karl - Direct link
Hey minhogu0826, thank you very much for sharing this with everyone and hopefully whoever runs into the same issue will find these steps useful .