This is a partial solution to an annoying problem.
Microsoft have a Download details: Works 6.0 Converter for Works and Word Users
The Works 6.0 Converter allows you to convert word processor documents created in Microsoft Works 6.0 to Microsoft Word and other Works programs. Specifically, this converter works with Works 2000, 4.5, and 4.x, and Word 2002, 2000, and 97.
The problem of document conversion doesn’t pop up anywhere near as much as it used to. But when those people who got a copy of Works with their Dell PC and want to use the document they create a work, this may help.
Also give them a copy of Open Office 2 for them to install on their home machine and the problem will go away.