Autocad Fatal: Error Unhandled Delayload Pm16.dll __hot__

AutoCAD Fatal Error: "Unhandled Delayload pm16.dll" – Causes & Fixes

1. Launch with Graphics Acceleration Disabled

This "Fatal Error: Unhandled Delayload Pm16.dll" typically occurs when AutoCAD struggles to initialize specific plotting or performance-related libraries. Use the following guide to resolve it.

  1. Go to Control Panel > Programs and Features (or Settings > Apps > Installed Apps).
  2. Scroll down to the Microsoft Visual C++ Redistributable entries.
  3. You will likely see multiple versions (2012, 2013, 2015, etc.).
  4. Focus on Microsoft Visual C++ 2012 Redistributable (x86 and x64).

    LEO

    I wasn’t! I was hatching! The polyline sent a thread request to the graphics pipeline, the pipeline asked the kernel for a memory address, and the kernel said, “Sorry, I don’t speak 16-bit anymore.” And now there is a loaded gun in the operating system. And the trigger is my mouse. Autocad Fatal Error Unhandled Delayload Pm16.dll

    Method 1: Reset AutoCAD to Default Settings (The "Nuclear" Reset)

  5. Look for a value named AppInit_DLLs .
  6. Double-click it. If it contains any path referencing pm16.dll, delete the path and leave the value blank.
  7. Click OK and restart.

The pm16.dll error often occurs during PDF import because AutoCAD switches to a different rendering pipeline (GDI vs. Hardware Acceleration). Outdated GPU drivers cause a fatal exception. AutoCAD Fatal Error: "Unhandled Delayload pm16

If you’re seeing this crash, here is a step-by-step guide to troubleshooting and getting back to work. 1. Reset AutoCAD to Default Settings Go to Control Panel > Programs and Features