yes, provided you don't let any of the respective installers DIDDLE the registry on your behalf, and you install into different base directories, and use activestate zip installer, and portable versions of others (strawberryportable is more portable than plain strawberry, but they're both pretty portable)

Re: tool for managing perl in win32 (PATH/PERLLIB/INSTALL_BASE), Re: install activestate 5.10 over 5.8.9 (no, zip),