C:\Temp\perl-5.16.3>perl -V Summary of my perl5 (revision 5 version 16 subversion 3) configuration: Platform: osname=MSWin32, osvers=5.1, archname=MSWin32-x86-multi-thread uname='' config_args='undef' hint=recommended, useposix=true, d_sigaction=undef useithreads=define, usemultiplicity=define useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef use64bitint=undef, use64bitall=undef, uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cl', ccflags ='-nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE - DNO_STRICT -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -DPERL_TEXTMO DE_SCRIPTS -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO', optimize='-MD -Zi -DNDEBUG -O1', cppflags='-DWIN32' ccversion='16.00.30319.01', gccversion='', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64', lseeksi ze=8 alignbytes=8, prototype=define Linker and Libraries: ld='link', ldflags ='-nologo -nodefaultlib -debug -opt:ref,icf -libpath:"c: \perl\5.16.3\lib\CORE" -machine:x86 "/manifestdependency:type='Win32' name='Mic rosoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publ icKeyToken='6595b64144ccf1df' language='*'"' libpth=\lib libs=oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.l ib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib ws2_32 .lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib comctl32.lib msvcrt. lib perllibs=oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg 32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib ws 2_32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib comctl32.lib msv crt.lib libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl516.lib gnulibc_version='' Dynamic Linking: dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' ' cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug -opt:ref,icf - libpath:"c:\perl\5.16.3\lib\CORE" -machine:x86 "/manifestdependency:type='Win32 ' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitectu re='*' publicKeyToken='6595b64144ccf1df' language='*'"' Characteristics of this binary (from libperl): Compile-time options: HAS_TIMES HAVE_INTERP_INTERN MULTIPLICITY PERLIO_LAYERS PERL_DONT_CREATE_GVSV PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS PERL_MALLOC_WRAP PERL_PRESERVE_IVUV PL_OP_SLAB_ALLOC USE_ITHREADS USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_PERLIO USE_PERL_ATOF Built under MSWin32 Compiled at Mar 20 2013 17:38:57 %ENV: PERL_INLINE_JAVA_JNI="1" @INC: C:/Temp/perl-5.16.3/lib . C:\Temp\perl-5.16.3>