Current Stable Production Release (version 1.7.18): Should be stable and not eat up memory, testing/feedback is welcome. ;) :D

​http://targetless.com/targetless.zip

If you are familiar with SVN you can also pull the latest targetless code (warning, may be unstable, though at the time of writing is quite stable and has new features) via the following line:
svn co http://svn.targetless.com/ ./targetless