Thx for reply, there's no need of posting the source code , as script it runs fine so it's not a problem from the code(i think), what's even more harder to understand it's that the SAME script worked as executable a few months ago (i could build the exe without problem). The only difference between now and then is that as far as i can remember i installed Windows again(yes, it's Windows) and that means that i also installed a new version of Perl. My distribution is Strawberry Perl. I know i could search for a older distribution but that's a kind of a compromise solutuion, i will do this as a last instance.