Is it only me or does not the search and find functionality in Windows Explorer work in AutoCAD 2008 on Windows Vista?
On the topic there is a 3:rd party solution available. It seemed to work well in my limited tests.
Via comments on Windows Desktop Search finds text within DWG's
Marco van Schagen said... ... and now you can download a free trial of our new DWG IFilter 2007 at http://www.dwgifilter.com
I hope to release our final within a few days. The 2007 version also works great with Windows Desktop Search!