"I know what is wrong with Net::Libdnet 0.01 under Win7"

If that's the case, either fix it, or test the advice of VinsWorldcom in Re: Net::Libdnet 0.01 does not work under Window 7, and see if that helps.

The module you speak of seems to have had a history of test failures, so when someone gives you workable advice, why not test it instead of arguing?

If it's a case of using another script within a script, there are options... system and backticks (see IO Operators in perlop).