Let's say I have a value: \\myServer\dir1\dir2\dir3. I'd like this value to appear in multiple places in an MSWord document. However I only want to write it down once. What's a good way to do this? Fields seem like the answer but I can't get it to work; maybe it's not the answer.

I'd like to be able to do this without any macros; it adds too much complexity. I need something more like Excel -- write a cell value here, reference it there, change the original value and the reference gets updated too.

Edit: ideally I'd have the value updated automatically (fields don't seem to want to do that!).