Dear TimoVJL,
Dear AW,
Dear LiaoMi,
Dear jj2007,
Dear All,
first, many thanks to AW and Timo (it was exactly what you supposed) and thanks to all who have written me.
In two words, the problem solution:
1/check the .NET Framework version: on Visual Studio - project-set-version must be the same as .NET Framework version installed on the machine you run the app. (if app ver.4.0, must be at least 4.0: latest versions include ver.4.0, is it?)
2/Install on the machine you run the app - Microsoft Visual C++ 2015 Redistributable Update 3 RC
(Microsoft Visual C++ 2015 Redistributable installs run-time components of Visual C++ libraries. These components are required to run C++ applications that are developed using Visual Studio 2015 Update 3 RC and link dynamically to Visual C++ libraries. )
...sorry that I blamed Assembler, it is a great powerful language!
::please, Assembler, become easier to be learned...::

Kind regards,
And have lucky days!!