path to SSI

I'm having trouble correctly defining the path to a SSI (again).

I have disabled "enable parent paths" on IIS for security reasons.

I have a page, call it menu.asp. I have attempted to include a SSI with a
virtual path statement like this:

virtual="myvirtualroot/inc/IncludeFile.asp"

I changed this path from that created by DW because the path created by DW
did not work at all. (I think DW may ASSUME that "enable parent paths" is
enabled on IIS).

When I preview in DW MX, or when I access the page using the IP address
rather than the domain name, this works fine. (like this:

http://192.168.0.1/myvirtualroot/admin/menu.asp )


BUT, when I attempt to access the page using my domain name, I receive an
error saying that the include file in menu.asp cannot be found. (Like this:

http://www.myvirtualroot.com/admin/menu )

Any suggestions on how I can fix this so that it works however I access the
menu.asp page?