If you would like to check the validity of the Windows download, you can use the fciv tool from Microsoft. This version of the program should give you:
fciv PathwayBootstrap-1.17.0.5939.exe
//
// File Checksum Integrity Verifier version 2.05.
//
a6c1a8217c53148f760e99baa3fe0eb6 pathwaybootstrap-1.17.6.5976.exe

On Linux, use the md5sum command to display the md5 value.