How to enforce usage of MSVCR100.dll? Change from Win7--->Win10?

I have a small utility which uses the MS C++ Redistributable library msvcr100.dll

It works successfully on Windows 7.

Now I put the program and all accompaning files (including msvcr100.dll) on an USB flash drive.

When I plugin that USB flash drive into another computer with Win10 and try to start it Win10 tells me something similar to

"MSCVR100.DLL is not design for Windows or contains errors."

It IS designed for Windows and it works on Windows 7!!!

So whats the error?

Do I have to use a different MSVCR100.DLL for Windows 10? From where do I get this?

Or does the program use another MSVCR100.dll?
I set the PATH (temporarily) to

.;<....normal PATH...>

Mind the leading dot!

So from my point of view the current local msvcr100.dll from local directory must be fetched.

Any other ideas?

Peter