Map extraction (especially MMaps) can take several hours and requires significant CPU and disk space.
Run vmap4extractor.exe . This creates a Buildings/ folder with raw geometry data. After it completes (usually 20–30 minutes), run vmap4assembler.exe Buildings vmaps . This assembles the VMaps into usable vmaps/ folder. WoW-WOLK-3.3.5a-Server-DBC-Maps-MMaps-VMaps-Wor...
: Short for "Vertical Maps," these provide 3D collision data. They are essential for calculating line-of-sight (LOS) for spells and preventing units from walking through solid objects like walls, trees, or buildings. Map extraction (especially MMaps) can take several hours
Setting up a World of Warcraft (WoW) private server for the Wrath of the Lich King (WotLK) 3.3.5a WoW-WOLK-3.3.5a-Server-DBC-Maps-MMaps-VMaps-Wor...