It would be really great to be able to import and export my DiffMerge settings to share with co-workers.

I will enter a feature request. Thank you for the suggestion.

F: 15270

In the meantime, you could try exporting and importing the registry settings for the tool. So that I can tell you where to look can you tell me if you are using just the DiffMerge that came with Vault or Fortress or using the separate DiffMerge tool?

The separate DiffMerge tool.

Sorry, but import/export of preference settings didn't make it into the last release.
If you're brave, you might try moving copying the various config files/registry settings.

On MAC, we have a single config file: "~/Library/Preferences/SourceGear DiffMerge Preferences".
On Linux, we have a single config file: "~/.SourceGear DiffMerge".

Both of these are text files (and very similar to a .INI file).

On Windows, all of the settings are stored in
HKEY_CURRENT_USER\Software\SourceGear\SourceGear DiffMerge
There are lots of sub-keys and name/value pairs within this. You
should be able to export the top-level key to a .REG file and then
let someone else import it. (Or if you are only interested in a particular
set of vaules (say ruleset settings), just get the stuff in
HKEY_CURRENT_USER\Software\SourceGear\SourceGear DiffMerge\File\Ruleset)


In all cases you should exit DiffMerge before copying the settings (we
write out some of them as we shutdown). Likewise, the importer should
close DiffMerge before attempting to import them.

If the recipient has any problems using DiffMerge after "importing", just
have them delete the new stuff and relaunch. DiffMerge will create a
new file with the builtin defaults the next time it starts up.

Hope this helps,
jeff