Hello i'm facing this issue. I know this might be something related to dll version and perl version (32bit/64bit). The error: Can't load 'c:/Perl/site/lib/auto/DBD/Pg/Pg.dll' for module DBD::Pg: load_file:%1 is not a valid Win32 application at c:/Perl/lib/DynaLoader.pm line 230. Perl version:

Summary of my perl5 (revision 5 version 8 subversion 6) configuration:
  Platform:
    osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    usethreads=define use5005threads=undef useithreads=define usemulti
+plicity=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 -DHAVE_DES_FCRYPT  -DNO_HASH_SEED -DPERL_IMPLICI
+T_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX',
    optimize='-MD -Zi -DNDEBUG -O1',
    cppflags='-DWIN32'
    ccversion='', gccversion='', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64
+', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='link', ldflags ='-nologo -nodefaultlib -debug -opt:ref,icf  -l
+ibpath:"c:\Perl\lib\CORE"  -machine:x86'
    libpth=\lib
    libs=  oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib
+  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib  netap
+i32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib  version.lib odbc32.lib
+ odbccp32.lib msvcrt.lib
    perllibs=  oldnames.lib kernel32.lib user32.lib gdi32.lib winspool
+.lib  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib  n
+etapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib  version.lib odbc32
+.lib odbccp32.lib msvcrt.lib
    libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib
    gnulibc_version='undef'
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug -opt:
+ref,icf  -libpath:"c:\Perl\lib\CORE"  -machine:x86'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL
+_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
  Locally applied patches:
        ActivePerl Build 811
        21540 Fix backward-compatibility issues in if.pm
        23565 Wrong MANIFEST.SKIP
  Built under MSWin32
  Compiled at Dec 13 2004 09:52:01
  @INC:
    c:/Perl/lib
    c:/Perl/site/lib
    .
[download]

Any suggestion about troubleshooting ? Thanks Regards Davide

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