Chnage layer colour on multiple drawings

I need to change the colour of a couple of layers on hundreds of drawings. Is there a simple way of doing this?

 

Write a script to process one dwg. Then run the script on the whole batch
using ScriptPro.

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Ed
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Is there a simple way of doing this?

 

There are two answers.
First and easiest for a one time project is to use a script.

Second is will take more developement time but will run significantly
faster - using ObjectDBX (requires Acad 2000 or later). A bit of background
information can be found here:
http://mysite.verizon.net/~vze2vjds/acadx/objectdbx.htm Basically,
ObjectDBX allows one to manipulate a drawing using vba/vb/vlisp without
having to open the drawing in the drawing editor. ObjectDBX is an
undocumented component of AutoCAD. Google returned "about 3,940" hits when
searched for objectdbx.

Hope that helps,
Mike Weaver

Is there a simple way of doing this?

 

I can't create a macro because the VBA manager won't work. It keeps telling me I failed to create a VBA project and closing down.
I can't even use vbaload or vbarun. Would anyone know if it is because Office XP got loaded over the top of it?