I have built a simple 'Hello World!' Perl program into an executable using pp -o mytest.exe mytest.pl. This runs fine when the PATH includes the C compiler directory, but if I run it without I get the message 'The program can't start because libgcc_s_dw2-1.dll is missing from your computer. Try reinstalling the program to fix this problem.' Including the library with the -l option has no outward effect, though it is included in the executable (I've unzipped it to verify) and does appear to go into the cache directory (in Par::Packer version 1.008 it was under the inc/shlib subdirectory, and in version 1.009 it is in the main directory). I am running: -Windows 7 Professional -ActivePerl 5.12.3 (32 bit) -MinGW gcc 4.5.2 (where the libgcc_s_dw2-1.dll is from) -PAR 1.002 -Module-ScanDeps 1.02 -PAR-Packer 1.009 Background: I'm looking to build some programs to simplify my organization's internal processes. No one else is familiar with Perl or C, and I can't make people learn or install it on their computers. In the event that I'm away and can't run the processes, I could leave programs to run with simple instructions. pp seems to be a good solution so that I can use Perl, except for this issue. I filed this on the CPAN forum for PAR::Packer, and Roderich's response was: ...it's a bug in PAR::Packer. Please file a report at rt.cpan.org (for distribution "PAR-Packer") so that it doesn't get lost - basically cut+paste your post here. Shouldn't be too hard to fix, because the mechanism to pack some libgcc_*.dll is already there, but it expects this DLL to be in the same directory as perl.exe itself.