Download hdfview.bat (Windows) from https://portal.hdfgroup.org/display/support/HDFView+3.1.2#HDFView3.1.2-knownprobs
and place it in the same folder that HDFView.exe is installed.
Run the .bat file and that should sort out the problem.
I also installed vc_redist.x64.exe from
https://support.microsoft.com/en-us/topic/the-latest-supported-visual-c-downloads-2647da03-1eea-4433-9aff-95f26a218cc0
before running the batch file.
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