What should 'web bootstapper' setting on setup project do?

I am trying to create the files to put on a web site so that a user can
download a new version of a app. I have a setup project that works
fine for installation from a cd. To make a web version of this I
changed the bootstrapper setting on the project property pages to 'web
bootstrapper', filled in the URLs, rebuilt the project, and copied the
files to the web site.  When I access setup.exe I get an error that it can't
find the .msi
file. It expects to find it in the top level folder and I have it in a
subfolder. The URL I set in the 'web bootstrapper' seems to have been
competely ignored.



From what I have read, it seems that setup.exe needs its resources
edited in order to know where to look for the msi file. I thought this
is what VS.NET was doing when I set the web bootstrapper info. But the
file date on setup.exe has not changed, implying that this setup.exe is
using all default info.

Do I have to run msistuff.exe to configure setup.exe?
What is the 'web bootstrap' setting supposed to do?
Am I missing something here?


Thanks in advance for any help on this.