You can use AutoUpdate with SetupIP ;-)
In the setup.cfg file, that you put in the win32 directory, simply set
Copy the generated setupip.exe file to the win32 directory of your SDD.
What will happen is, that during the launch of the GW Client, the POA will send and launch the SetupIP.exe file from the win32 directory to the client.
(And if using the std. old push technology, the POA will send the file update.exe, located in the directory just above the win32 dir)
When launched, setupip.exe will contact your webserver