space in a filepath in Outlook

How do you make a clickable link to a filepath that has a space in it?

I need to send a link to staff in an office that allows them to open an smb filepath in a directory with a space.

In the following example the directory is /sharename/this directory.

I have tried:

smb://sharename/this\ directory

and

file:///Volumes/sharename/this\ directory

and

smb://Voumes/sharename/"this\ directory"

I'm stumped. has anyone been able to do this successfully in outlook?

Question about Outlook Express