Checking if your kit is complete... Looks good Note (probably harmless): No library found for -lssl Note (probably harmless): No library found for -lcrypto Writing Makefile for OpenSSL Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp OpenSSL/Digest.pm blib\lib/OpenSSL/Digest.pm cp OpenSSL/PKCS7.pm blib\lib/OpenSSL/PKCS7.pm cp OpenSSL/PKCS12.pm blib\lib/OpenSSL/PKCS12.pm cp OpenSSL/Cipher.pm blib\lib/OpenSSL/Cipher.pm cp OpenSSL/Name.pm blib\lib/OpenSSL/Name.pm cp OpenSSL/RSA.pm blib\lib/OpenSSL/RSA.pm cp OpenSSL/X509.pm blib\lib/OpenSSL/X509.pm cp OpenSSL/Rand.pm blib\lib/OpenSSL/Rand.pm cp OpenSSL.pm blib\lib/OpenSSL.pm cp OpenSSL/CRL.pm blib\lib/OpenSSL/CRL.pm cp OpenSSL/BN.pm blib\lib/OpenSSL/BN.pm AutoSplitting blib\lib/OpenSSL/BN.pm (blib\lib\auto\OpenSSL\BN) cp OpenSSL/HMAC.pm blib\lib/OpenSSL/HMAC.pm 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 OpenSSL.xs > OpenSSL.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv OpenSSL.xsc OpenSSL.c 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=\"0.09\" -DXS_VERSION=\"0.09\" "-IC:\cpanrun\build\5-10-0\lib\CORE" OpenSSL.c OpenSSL.c OpenSSL.xs(5) : fatal error C1083: Cannot open include file: 'openssl/bio.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.