To install Warp Server on OS/2 Warp 4, you need two products (and two licenses):
From OS/2 Warp 4 we will use the base operating system and all components that come with it. From the networking part of OS/2 Warp 4, we will use only the Multi Protocol Transport Services (MPTS) and the TCP/IP component.
From the OS/2 Warp Server 4 package, we will use the following components:
We will not use the OS/2 Warp 3 base operating system on which OS/2 Warp Server is normally based. We will also not use the PSF/2 component of Warp Server, because it is not supported on OS/2 Warp 4.