Chris Roberts These packages will only run on Mac OS X V10.2.x or above ( the previous dynamic libs are not compatible) The SPKG is the structure Used to make an OSX installer for your Info on how it was made. The Mpkg contains all the separate packages (.PKG) in one easy to use installer. ALTERNATIVELY: go to this url to get the OSX "mpkg.sit" file and instructions on install. http://www.osxgnu.org/software/Security/content_filtering/ It is a complete package with latest Squid and the latest DG 2.7 yes I got it compiled added the libs you needed statically so it is complete. On the above Page it tells how to configure Single User or Network Use on OSX. The package comes with RC scripts for OSX so it is complete except the slight manual setting of the proxy settings for the system. Also the Default settings for the DG Package does let .sit, .mov, and .dmg files through as these seem to be very mac specific.