im using downloaded RBT by Colibri. I read the pdf manual file.
just what i was going to say ...
i've had that same error more than a few times myself and sure enuff is because your missing Microsoft Visual C++ Redistributable Package (x86)
Here is the direct link from microsoft site => https://aka.ms/vs/15/release/vc_redist.x86.exe
http://www.mediafire.com/file/97erhoox4d3zabq/aio210.zip
Download and Install
Your problem will be resolved