Delete Duplicate Objects (3ds Max)

Anyone know of a script or tool that can delete duplicate objects in 3ds max - geometry imported via .3ds file has stuff stacked on top of each other i,e, 5 doors instead of one all piled on top of one another…

I found this one: http://www.scriptspot.com/3ds-max/sc…licate-objects

But it’s hanging like a mofo when I run it on a large group of objects. I also have the SiNi toolset available at my disposal, but don’t see anything in there that could address this.

thanks in advance!