This site has a way to translate into a mac network location and open it: http://hints.macworld.com/article.php?story=20040322155331393
So you could easily save that as a text service and be able to select a windows network location, right-click it, and have it translated and opened.
I imagine you could sort of reverse the function and translate back into a windows network location string.
Here's how to set up a text service to convert to a Mac path and open it in Finder:
- Open up Automator
- Choose "Service"
- Drag a "Run AppleScript" item from the library into the main area on the right.
- Copy and paste this AppleScript into it:
https://gist.github.com/2211017 (it wouldn't properly format in here)
- Save it under "Convert and Open Windows Path" or whatever you like.
- Select a path in an application, right-click it, and look for the service you created (it might be under a "Services" sub-menu)
Here's what your Automator service should look like: