in reply to How install multiple version of perl
in addition to what already said, you can simply use portable versions of StrawberryPerl. These versions ship with a portableshell.bat launcher wich avoids collision with other perl versions eventually present in the system (by simply prepending itself in PATH with set PATH=%~dp0perl\site\bin;%~dp0perl\bin;%~dp0c\bin;%PATH% ).
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