LTSVCFG.COM

This is the configuration utility for the LAN Virtual Device Driver (LANVDD) — the OS/2 component that gives DOS sessions/VDMs virtualized access to 802.2/NetBIOS networking. It is a raw DOS .COM file (no OS/2 executable header), consistent with needing to run correctly inside a real DOS/VDM context. It is documented in the IBM MPTS Configuration Guide (MPTSCFG.INF) under "Configuring the LAN Virtual Device Driver" → "Using the LTSVCFG Utility Program."

CONFIG.SYS Information

Configures per-adapter parameters used by the LAN Virtual Device Driver (LANVDD.OS2/LANPDD.OS2) when a DOS session/VDM starts.

Notes

Per its message catalog (LT0.MSG): "The configuration parameters supplied to LTSVCFG are incorrect. Defaults will be used for all adapters." — i.e. LANVDD falls back to defaults rather than failing outright if this utility's parameters are invalid. Related book topics in the same chapter cover DOS/Windows terminal-emulator settings (PC3270, Attachmate EXTRA!, PC Support/4000, Wall Data Rumba, TCP/IP for DOS) that run over this layer.