Add \jvgmtrans.bat to run.
Remove bin\jvgmtrans.bat (not work).
Add \build.xml for build Apache ant.
Also, binary archive release.
$ unzip jvgmtrans_20220419.zip
$ cd jvgmtrans_20220419
$ cp filename.vgm <- (.vgm file you want to convert) .
$ jvgmtrans.bat filename.vgm