AutoCAD 2002 was built for 32-bit systems. Running it on modern 64-bit hardware is difficult because the C-Dilla driver is a 32-bit kernel-mode driver that will not load on 64-bit Windows. Autodesk Community, Autodesk Forums, Autodesk Forum Use 32-bit Windows
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If you are receiving an error that cdilla.dll is missing or failing to load, the standard procedure is to update the License Manager: AutoCAD 2002 was built for 32-bit systems
Most modern users encounter this issue because AutoCAD 2002 was designed for Windows 98 and XP. When running on newer operating systems like Windows 7, 10, or 11, the original license driver becomes obsolete or blocked by modern security protocols. Specifically, the C-Dilla RTS (Runtime System) requires an update to communicate correctly with the hardware and the OS kernel. Step-by-Step Installation Guide When running on newer operating systems like Windows