InfoPath Dev

I want to add a hyperlink in my Infopath form to a folder location.  When I use the link, the folder opens fine in Windows Explorer but Infopath freezes for about 45 seconds.  It works fine with a hyperlink to a file...Infopath 2007/Vista Any suggestions?

I don't have access to C but I'll try the vb solution when I get back to work Monday.  It's too bad Infopath didn't have the 'workdays' function like Excel. Thanks!

Does anyone know how to add workdays to a date in InfoPath?  For example, I would like to add 7 days to a date which would not include Saturday or Sunday.  If holidays could be excluded too would be nice but is not absolutely required.  Thanks in advance.