http://qs321.pair.com?node_id=1107538


in reply to 'C:\Program' is not recognized as an internal or external command, operable program or batch file.

Not very up on Windows, but it seems that system is passing the request to Windows where the space separated elements of the path are being interpreted as individual parameters. If you look at the documentation for system, it suggests the following would work:

system($browser, $Path);