Note (probably harmless): No library found for 'Psapi.lib' files are missing in your kit: package/Win32API-Process.ppd Please inform the author. Writing Makefile for Win32API::Process cp Process.pm blib\lib\Win32API\Process.pm D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-Please specify prototyping behavior for Process.xs (see perlxs manual) NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. > Process.xsc && D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib -MExtUtils::Command -e mv Process.xsc Process.c cl -c -nologo -O1 -MD -Zi -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX -O1 -MD -Zi -DNDEBUG -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -ID:\cpanrun\build\5-6-1\lib\CORE Process.c Process.c Process.xs(7) : fatal error C1083: Cannot open include file: 'Psapi.h': No such file or directory