I have to install the "SQL Server Native Client" msi on the target
computers.

How can I determine via SetupBuilder what OS is running? And when I do, how
do I tell the installer which version to install?

Here's the file(s) in question:
sqlncli.msi
sqlncli_64.msi

So - you can see here what I need to do - install the correct file depending
on whether it's 32 or 64 bit.

Thanks,
Don
Krontz Media