There is a program called 'AutoScript-for-AutoCAD' I've been meaning to have a look at .... If anyone has looked at it please post comments 
I use Hurricane from 74mph. I runs great in Windows 7. I'm using it to update our Archives ('92 to '08) About 60,000 files. It works decent. I run a year of archives in one script. I may have to restart 2 to 5 times do to low system memory, but otherwise any one script could process 4000+ files.
However, the program I'm writing has to be user friendly and licensing, OS, AutoCAD, and process independent. And of course have someone inhouse to manage and support it... being me. :ugly:
