The definitive guide to resolving multiple license conflicts
The shared DLL and FlexNet problem
When you install multiple Autodesk versions on the same workstation, the
FlexNet license manager generates conflicts when trying to access the same shared libraries (
.dll). According to
official documentation, this happens because:
- Versions released after 2022 modify the structure of
AdskLicensingAgent - Background processes don't close completely when exiting the applications
| Symptom | Probable cause |
|---|
| Unexpected crashes when switching between software | DLL locked by another process |
| License errors on startup | FlexNet with corrupted cache |
Step-by-step procedure
1. Clear the license cache
- Run Services.msc and stop the FlexNet Licensing Service
- Manually delete the folder
C:ProgramDataFLEXnet - Restart the computer
2. Automated reset script (.bat)
Create a text file with this content and save it as
reset_autodesk.bat:
@echo off
taskkill /F /IM AdskLicensing* /T
net stop "FlexNet Licensing Service"
del /F /Q "%ProgramData%FLEXnet*"
start "" "C:Program FilesAutodeskAdskLicensingCurrenthelperAdskLicensingInstHelper.exe" repair
Frequently Asked Questions (FAQs)
Can AutoCAD 2024 and Revit 2025 run simultaneously?
Yes, but it requires setting up independent profiles for each version according to
reported cases.
Does this method delete my permanent licenses?
No. Licenses are re-registered after restarting the FlexNet service.
Do I need administrator privileges?
Yes, to modify system files and stop services.
