Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lxosd Writing Makefile for X::Osd Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. Math::BigInt: couldn't load specified math lib(s), fallback to Math::BigInt::FastCalc at C:/cpanrun/build/5-10-0/site/lib/Win32API/File.pm line 20 cp Osd.pm blib\lib\X\Osd.pm AutoSplitting blib\lib\X\Osd.pm (blib\lib\auto\X\Osd) 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 -typemap typemap Osd.xs > Osd.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv Osd.xsc Osd.c 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=\"0.7\" -DXS_VERSION=\"0.7\" "-IC:\cpanrun\build\5-10-0\lib\CORE" Osd.c Osd.c Osd.xs(5) : fatal error C1083: Cannot open include file: 'xosd.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.