Re^2: Proc::Background does not take file path with spaces

[Corion]

The Windows command shell (cmd.exe) expects whitespace in arguments to be properly quoted, and "properly quoted" in its terms means to use double quotes to surround the file name.

As double quotes treat the backslash special, single-backslashing a space character doesn't make much sense to me. I would try

my $Command = q{"C:\Program Files (x86)\vs.exe"};

or the double-quoted variant

my $Command = qq{"C:\\Program Files (x86)\\vs.exe"};