InstallAware

When testing Windows Authentication mode in the SQL Server plug-in (by leaving the user name and password blank), it seems like it only works when the SQL Server is on the same machine as you're running the installer. Is this mode supposed to also work over a local network?

If the user exists on the target machine, has the same password, has remote connections enabled and it's on a group that can connect to the server, then yes, it works.