4
I don't believe it's a setting in IIS. How specifically are you referencing the hyperlinks?
If, for example, your href links direcly to the UNC link, then that might be the source of the problem.
Incorrect Syntax:
<a href=\\server\share\folder with a space\folder\>
Correct Syntax:
<a href="file://server/share/folder with a space/folder/">
The link SHOULD also work correctly with UNC folder \ instead of /.
In other words:
<a href="file:\\server\share\folder with a space\folder\">
Let me know if either of these correct the problem. I do think, however, that you will have to update all of your links in some way. IE or any browser will automatically put the %20 in anytime there is a space.
In my work environment, I have a personal rule for anyone I'm working with to ALWAYS replace spaces with an Underscore, a hyphen, or to put the words together, usually capitalizing the first letter of every word.