Topic summary
Virtual Loadable Module

Extracted from the Wikipedia article Personal NetWare.
Personal NetWare
Significantly reworked, the product line, codenamed "Smirnoff", became Personal NetWare 1.0 (PNW) in 1994. The ODI/VLM 16-bit DOS client portion of the drivers now supported individually loadable Virtual Loadable Modules (VLMs) for an improved flexibility and customizability, whereas the server portion could utilize Novell's DOS Protected Mode Services (DPMS), if loaded, to reduce its conventional memory footprint and run in extended memory and protected mode. The NetWare Lite disk cache NLCACHE had been reworked into NWCACHE, which was easier to set up and could utilize DPMS as well, thereby reducing the DOS memory footprint and significantly speeding up disk performance. Personal NetWare came bundled with the network-enabled game NetWars 2.06.