I installed TeX Live 2019 on Windows 10 last year and tried to use the built-in psv to read postscript files. It opened with an error message, which I cannot remember now. This year, I installed TeX Live 2020 on Windows 10 and again tried to use psv. This time, it does not even open.
I know that postscript files can be easily converted to PDF files using the built-in tools of TeX Live, but I do want to know what went wrong. Just to be able to read the postscript files without converting them to PDF, I then installed ghostscript from ghostscript.com and gsview from ghostgum.com.au. With these, the postscript files could be viewed.
I remember that there were no problems with psv in earlier releases of TeX Live. What went wrong with psv, and is there a fix?