Hi Morris,

From your description, I understand that what you want to create a virtual
directory in IIS during your web application's deployment time(in web setup
project) and that virtual directory should point to a external path(outside
of the wwwroot folder hierarchy), correct?

Since the built-in websetup project's virtual directory is created as a
physical directory under wwwroot site, I think you should consider using
your own code to create such as virtual directory programmatically(through
customAction of setup project).  A common approach is using ADSI script to
create IIS virtual directory, here are some web resources describing this:

#Creating Sites and Virtual Directories Using ADSI
http://msdn2.microsoft.com/en-us/library/ms524830.aspx

#Creating And Configuring an IIS Web Application with Script
http://www.eggheadcafe.com/articles/20010609.asp

#Create & Destory IIS Virtual Directories - Programmatically
http://www.geekswithblogs.net/codesailor/articles/59734.aspx

Hope this helps. If you have any  more specific questions, please feel free
to post here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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