so, you're not looking for a plugin... as that would still require you to open each drawing. You are looking for a third party proggy that will purge your DWG's without ever opening them in Acad. (right?)
Otherwise running an automated batch to run the purge on all dwg's is only going to cost some time (but you might as well run it at night)
All you realy need: A lisp to run on 1 drawing. A script to load & run the lisp on all DWG's. (or if it's just a single command, you only need to execute that command for each drawing)
Such a .scr batch looks something like this:
(command "fileopen" "D:\\yourdwgs\\drawing1.dwg")
(load "myLisp.lsp")
(c:myPurgeFunc)
(command "qsave")
(command "fileopen" "D:\\yourdwgs\\drawing2.dwg")
(load "myLisp.lsp")
(c:myPurgeFunc)
(command "qsave")
etc.
Or just something like:
(command "fileopen" "D:\\yourdwgs\\drawing1.dwg")
(command "purge" "a")
(command "qsave")
(command "fileopen" "D:\\yourdwgs\\drawing2.dwg")
(command "purge" "a")
(command "qsave")
There are a few apps out there that can create such a batch file for you. (list of drawings + list of commands -> generate script)
...and i'm still rewriting my own lisp version of such generator. (almost done, but still need to do some extensive testing)
