Answer by K.A.Monica for How to set file association in Windows Explorer?

New versions of Windows require Registry editing since the file association control panel does not allow you to specify parameter passing. One source suggests using this in a text file saved as "foo.reg" and opened by Windows:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Perl\shell\Open\command] @="\"C:\path\to\python.exe\" \"%1\" %*"

This should cause Windows to pass the filename to the interpreter.

Source: https://stackoverflow.com/questions/444388/how-can-i-pass-command-line-arguments-via-file-association-in-vista-64