it is possible to write an autosave script using thw windows Task Scheduler ... i wrote one ..and it works (without interupting after, ex : RAM preview, tracking, ...)
It is a little complicated to setup... but it works.
Some of the issues are that after effects doesn't let you save the project "as a copy" meaning that if you want to make a backup copy you would have to save it twice (one time for the backup, one time to save it back on it's original location) and it would still overwrite your actual project.
A good solution was to notify people if they haven't saved since x minutes instead of just saving and overwriting the file ... but once again a problem occures when your trying to do this as the after effects "app.project.file.modified" method has a bug and always return the same last modified time 19:26:40 ... or something like that ...
