Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lmcrypt Writing Makefile for MCrypt Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp MCrypt.pm blib\lib\MCrypt.pm AutoSplitting blib\lib\MCrypt.pm (blib\lib\auto\MCrypt) 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 MCrypt.xs > MCrypt.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv MCrypt.xsc MCrypt.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=\"0.92\" -DXS_VERSION=\"0.92\" "-IC:\cpanrun\build\5-10-0\lib\CORE" MCrypt.c MCrypt.c MCrypt.xs(33) : warning C4013: 'is_hex' undefined; assuming extern returning int MCrypt.xs(53) : warning C4013: 'pmcrypt_get_block_size' undefined; assuming extern returning int MCrypt.xs(61) : warning C4013: 'pmcrypt_cbc' undefined; assuming extern returning int MCrypt.xs(92) : warning C4013: 'pmcrypt_ecb' undefined; assuming extern returning int MCrypt.xs(127) : warning C4018: '!=' : signed/unsigned mismatch MCrypt.xs(131) : warning C4013: 'pmcrypt_ofb' undefined; assuming extern returning int MCrypt.xs(111) : warning C4101: 'IV_len' : unreferenced local variable MCrypt.xs(166) : warning C4018: '!=' : signed/unsigned mismatch MCrypt.xs(170) : warning C4013: 'pmcrypt_cfb' undefined; assuming extern returning int MCrypt.xs(150) : warning C4101: 'IV_len' : unreferenced local variable MCrypt.xs(182) : warning C4013: 'pmcrypt_get_cipher_name' undefined; assuming extern returning int MCrypt.xs(193) : warning C4013: 'pmcrypt_get_key_size' undefined; assuming extern returning int 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=\"0.92\" -DXS_VERSION=\"0.92\" "-IC:\cpanrun\build\5-10-0\lib\CORE" mc-interface.c mc-interface.c mc-interface.c(15) : fatal error C1083: Cannot open include file: 'mcrypt.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.