There's a MS add-in which allows you to compare versions of a project. I've
used the 2000 version, but there seems to be a version for 2002 as well. Just
Google for "compare project versions".
The useability is a bit awkward, and I did have problems using it with
subprojects (see below), however it may help you. The problem as John
indicated seemed to be that the master project doesn't really "know" about
the subprojects unless they are all open and fully expanded.
Martin
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The schedule I was comparing had external links to a different Project file
(schedule), which was not open at the time the comparison was run. Links to
other schedules appear as “ghost†tasks.
The comparison crashed on the task immediately before the “ghost†task from
the other schedule.
If I also opened the schedule which was linked to, during the comparison, it
seems to run OK. It still seems a bit flaky, but what seemed to work
consistently was:
Open the “version 1†and “version 2†of the file to be compared
Expand all tasks in both versions 1 and 2
Open the other linked-to schedule and expand all tasks
Run the comparison.