With Win2003 Server...
You run only one instance of
WAA1SRV.EXE.
In IIS, you create a "Web Service
Extension" for WAA1GATE.ISA and set it to "Allowed".
You service multiple websites on
this computer simultaneously this way. First, create a single
physical directory "cgi-bin". This is where you put
WAA1GATE.ISA.
Then, with each website, create
a Virtual Directory "cgi-bin" and map all of them to the
one physical directory. Now, any website url to
"\cgi-bin\waa1gate.isa..." goes to the one right place. I
create an individual DLL for each website, the file name of the DLL
being what you use for "WAA_PACKAGE=". I have had six
different websites running simultaneously.