In the registry, ...

Try posting the contents of n-regqueryperl.txt (the output of regqueryperl.bat )

regqueryperl.bat > n-regqueryperl.txt 2>&1

@rem @echo #~ regqueryperl.bat
@rem @echo #~ 2013-09-17-18:40:38
@rem @echo #~ 
@rem @echo #~ 
@rem @echo #~ regqueryperl.bat > n-regqueryperl.txt  2>&1
@rem @echo #~ notepad n-regqueryperl.txt  
@rem @echo #~ 
@rem @echo #~ 
@rem @echo #~ 
@setlocal

@set thisdir=%~dp0
@set thisfile=%~f0
@set thisfilebasename=%~n0
@set thisfilename=%~nx0
@echo %thisfilebasename%    %thisfilename%    %thisdir%    %thisfile%

perl -V
reg query HKLM\SOFTWARE\Perl           /s
reg query HKLM\SOFTWARE\ActiveState    /s
reg query HKCU\Software\Perl           /s
reg query HKCU\Environment             /s
reg query HKCR\PerlScript              /s
reg query HKCR\.pl                     /s
set pathext
assoc .pl
ftype perlscript
:endoffile
@endlocal
[download]