Checking if your kit is complete... Looks good MakeMaker (v5.45) Writing Makefile for Authen::TacacsPlus::tacplus Writing Makefile for Authen::TacacsPlus Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp TacacsPlus.pm blib\lib\Authen\TacacsPlus.pm cd tacpluslib && nmake -e Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. 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=\"0.10\" -DXS_VERSION=\"0.10\" -ID:\cpanrun\build\5-6-1\lib\CORE encrypt.c encrypt.c encrypt.c(20) : fatal error C1083: Cannot open include file: 'stdlib.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. NMAKE : fatal error U1077: 'cd' : return code '0x2' Stop.