RegappID cleanup utility

It just came to my attention that Autodesk quietly released their own RegApp cleaner a couple of months ago. This still doesn't do anything to prevent Registered Application IDs from propagating through xrefs and inserts so unless you clean everything that your file might come into contact with, you can count on getting infected with AppIDs over and over again. Still, along with the -purge R option that was reintroduced in 2005 or 2006 (after a very long absense), it's a step in the right direction.

Autodesk's CleanupRegApp tool isn't any more or less effective than cadthinking's PurgeIDs, and in fact, its interface is lacking compared to PurgeIDs. Still, it's nice to know that this is an Autodesk developed (and, presumably, Autodesk supported) tool to address a problem that has been swept under the rug for far too long.