Lock .aep File in Use

Is there a way to lock an .aep file when it's open?  Similar to when I open a file in Softimage - if someone else tries to open that file they get a message saying, "you can't - it's open somewhere else"

Working off the server ... communication ... or lack thereof ... people not telling other people they have an After Effects project open ... I can see this becoming a nightmare.

I looked on AEScripts for something but turned up nothing.

Any ideas?  How do others with larger facilities working off the server manage this?

Thanks,

Marc