That is actually to the point. The OP has some module that requires the Net.PM code even though it is not an installable module in and of itself. And PerlApp can't find it when the .exe is made.
Please your suggestion to help the OP. I am trying to do so.
Update: my brain wasn't running at full speed - If you are making an .exe with PerlApp, I've found the easiest way is to just add: use Net.pm; to the source code instead of fiddling with these other parameters. The Net.pm probably came in as a prerequisite to some other package rather than being explictly installed. Any package that is "used" will wind up in the PerlApp .exe.