I had this issue with a client today, the solution was to setup Virtual PC (comes with windows 7). Then install Autocad 2002. After you install the program in the virtual pc, a shortcut direct to the autocad in windows xp mode can be found under the windows 7 system, programs, virtual pc. It was very transparent to my client and he was happy not to have to buy the latest Autocad version.
Open the Little Snitch Installer application and click the Uninstall button.
If you don’t have the Installer available on your computer anymore, you can re-download it from their download page. Click here