I hope this experience will be useful for others.

A recent discussion in the 'Freeware Submission' section mentioned
Project Invincible (a chess program). Well it didn't work for me. It thought the Msvcp100.dll and msvcr100.dll files were corrupt. I suspected the application software, so I downloaded the necessary files from http://www.dll-files.com. It still didn't work.

At this stage I thought it must be my problem. So I tried installing and running Rainlender which needs the same files. Didn't work thus confirming that I had the problem.

The error message you get is ...
"MSVCP100.dll is either not designed to run on Windows or it contains an error . Etc"

Now browsing the web showed that whilst it was not a common problem, it had become more prevalent lately. The usual recommendation was to re-install the C redistibutable package.
Portable users don't want to do this. Browsing gave me ...
http://www.rhyous.com/2012/03/29/msvcr100-dll-download/

This provides a ZIP containing all the relevant dlls

Using MSVCP100.dll and msvcr100.dll from that download I had Rainlender and Project Invincible.

Summarising, if you hit the problem 'XXX.dll is either not designed etc'
don't just rely on http://www.dll-files.com, try a more recent alternative.

Thanks for sharing that info, JohnW. One is never ready enough for such woes...

Sorry about that. I just realized that I had accidentally included 64-bit DLLs. I'll fix that tomorrow with version 1.00b.

Edit: Done.

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My YouTube channel | Release date of my fourth playlist: April 11, 2013