Or just:

for my $line ( `C:/Program Files/Veritas/Netbackup/bin/admincmd/bpimag
+elist -A -media -hoursago 24` ) {
     ...
};
[download]

Which is simpler, and works. Note also:

1. The change from '>' to '/' between the last element of the path and the command name.
2. the absence of the '>' at the end of the command.

Both of which are left-overs from his attempt to convert his original qx<> delimited unix command lines to windows equivalents.