Checking if your kit is complete... Looks good Writing Makefile for Win32::Process::Perf Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp lib/Win32/Process/Perf/cz.dat blib\lib\Win32\Process\Perf\cz.dat cp lib/Win32/Process/Perf/de-at.dat blib\lib\Win32\Process\Perf\de-at.dat cp lib/Win32/Process/Perf/en-gb.dat blib\lib\Win32\Process\Perf\en-gb.dat cp lib/Win32/Process/Perf/en-us.dat blib\lib\Win32\Process\Perf\en-us.dat cp lib/Win32/Process/Perf/cs.dat blib\lib\Win32\Process\Perf\cs.dat cp lib/Win32/Process/Perf.pm blib\lib\Win32\Process\Perf.pm cp lib/Win32/Process/Perf/de-de.dat blib\lib\Win32\Process\Perf\de-de.dat C:\cpanrun\build\5-10-0\bin\perl.exe C:\cpanrun\build\5-10-0\lib\ExtUtils\xsubpp -typemap C:\cpanrun\build\5-10-0\lib\ExtUtils\typemap Perf.xs > Perf.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv Perf.xsc Perf.c Please specify prototyping behavior for Perf.xs (see perlxs manual) cl -c -nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1 -DVERSION=\"1.05\" -DXS_VERSION=\"1.05\" "-IC:\cpanrun\build\5-10-0\lib\CORE" Perf.c Perf.c Perf.xs(39) : fatal error C1083: Cannot open include file: 'Sddl.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.