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The One Man MMO Project
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Fixing a Defective MT.EXE
By Robert Basler on 2014-07-23 17:30:53
Homepage: email:one at onemanmmo dot com

Since warning messages bug me, I took another crack at finding a solution to this warning message today. I'm building with the Windows 7.0A SDK which has a defective mt.exe.

..\compatibility.manifest : manifest authoring warning 81010002: Unrecognized Element "compatibility" in namespace "urn:schemas-microsoft-com:compatibility.v1".

Microsoft's official instructions are to install the Windows 7.1 SDK, but it wouldn't install for me because I already had the 8.0 SDK. Apparently this is a pretty common problem with a really messy workaround.

Thinking there was a good chance that mt.exe still existed in the newer SDK's, I looked around and found that it can be found here:

C:\Program Files (x86)\Windows Kits\8.1\bin\x86

I did a quick run of each version of MT.EXE and these are the versions reported by the 7.0 and 8.1 toolkits respectively:

Microsoft (R) Manifest Tool version 5.2.3790.2076
Microsoft (R) Manifest Tool version 6.3.9600.17029

I then made backups of the troublesome:


located in:

C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\

Then replaced those binaries with the ones from the 8.1 SDK and voila, no more warning message!

(If UAC gives you problems moving files around, click on Start, type Windows Explorer and when it appears in the menu, right click on it and choose Run as administrator and you'll have no more problems.)

I quickly tested the new build of the installer and it appears to have the compatibility manifest it needs.

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