Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lperfstat Note (probably harmless): No library found for -lperfstat Note (probably harmless): No library found for -lperfstat Note (probably harmless): No library found for -lperfstat Note (probably harmless): No library found for -lperfstat Writing Makefile for AIX::Perfstat Writing Makefile for AIX::Perfstat Writing Makefile for AIX::Perfstat Writing Makefile for AIX::Perfstat Writing Makefile for AIX::Perfstat Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp lib/AIX/Perfstat.pm blib\lib\AIX\Perfstat.pm cp example1.pl blib\lib\AIX\example1.pl nmake -f Makefile all -nologo cl -c -I. -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=\"\" -DXS_VERSION=\"\" "-IC:\cpanrun\build\5-10-0\lib\CORE" cpu.c cpu.c cpu.h(17) : fatal error C1083: Cannot open include file: 'libperfstat.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. NMAKE : fatal error U1077: 'C:\PROGRA~1\MICROS~3\VC98\BIN\nmake.exe' : return code '0x2' Stop.