fwiw, I uninstalled the 64bit, and that problem looks to have gone, but now must
perl myperl.pl
instead of
myperl.pl

Guess the file ext .pl was set to the 64bit install...

This is perl 5, version 24, subversion 1 (v5.24.1) built for MSWin32-x
+86-multi-thread-64int
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2017, Larry Wall

Binary build 2402 [401627] provided by ActiveState http://www.ActiveSt
+ate.com
Built Jan  5 2017 01:57:19

Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 5 source ki
+t.

Complete documentation for Perl, including FAQ lists, should be found 
+on
this system using "man perl" or "perldoc perl".  If you have access to
+ the
Internet, point your browser at http://www.perl.org/, the Perl Home Pa
+ge
[download]

That's the output of "perl -v" (lowercase) not "perl -V" (uppercase).

My bad ..

C:\Users\Public\Architectural Energy Corporation\RemLaunch>perl -V
Summary of my perl5 (revision 5 version 24 subversion 1) configuration
+:

  Platform:
    osname=MSWin32, osvers=6.1, archname=MSWin32-x86-multi-thread-64in
+t
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    useithreads=define, usemultiplicity=define
    use64bitint=define, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='C:\STRAWB~1\c\bin\gcc.exe', ccflags =' -s -O2 -DWIN32 -DPERL_T
+EXTMODE_SCRIPTS -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IM
+PLICIT_SYS -fwrapv -fno-strict-aliasing -mms-bitfields',
    optimize='-s -O2',
    cppflags='-DWIN32'
    ccversion='', gccversion='4.6.3', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
+, doublekind=3
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+2, longdblkind=3
    ivtype='long long', ivsize=8, nvtype='double', nvsize=8, Off_t='lo
+ng long', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='C:\STRAWB~1\c\bin\g++.exe', ldflags ='-s -static-libgcc -stati
+c-libstdc++ -L"C:\Perl\lib\CORE" -L"C:\MinGW\i686-w64-mingw32\lib"'
    libpth=C:\MinGW\i686-w64-mingw32\lib
    libs=-lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 
+-ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -l
+mpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
    perllibs=-lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdl
+g32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_3
+2 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
    libc=, so=dll, useshrplib=true, libperl=libperl524.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-mdll -s -static-libgcc -static-libstdc
+++ -L"C:\Perl\lib\CORE" -L"C:\MinGW\i686-w64-mingw32\lib"'


Characteristics of this binary (from libperl):
  Compile-time options: HAS_TIMES HAVE_INTERP_INTERN MULTIPLICITY
                        PERLIO_LAYERS PERL_COPY_ON_WRITE
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
                        PERL_MALLOC_WRAP PERL_PRESERVE_IVUV USE_64_BIT
+_INT
                        USE_ITHREADS USE_LARGE_FILES USE_LOCALE
                        USE_LOCALE_COLLATE USE_LOCALE_CTYPE
                        USE_LOCALE_NUMERIC USE_LOCALE_TIME USE_PERLIO
                        USE_PERL_ATOF USE_SITECUSTOMIZE
  Locally applied patches:
        ActivePerl Build 2402 [401627]
  Built under MSWin32
  Compiled at Jan  5 2017 01:57:19
  %ENV:
    PERL5LIB="C:/Perl/site/lib"
  @INC:
    C:/Perl/site/lib
    C:/Perl/site/lib
    C:/Perl/lib
    .
[download]