User372121194 posted
Hi,
By default, Web Setup project just copy its contents to Virtual Directory on target machine.
To deploy multiple websites using one Web SetUp project, we can add other website folders into one website folder so that all websites will be copied to target machine. And then use Custom Action to create Virtual Directory and then retrieve these
website folders and copy them to created Virtual Directory.
For more information about using Custom Action to create Sites and Virtual Directories in IIS with System.DirectoryServices, see
http://msdn.microsoft.com/en-us/library/ms524896.aspx
I look forward to receiving your test results.