: Select Environment Variables at the bottom of the dialog. Step 3 : Under the System Variables frame, click New . Step 4 : Set the Variable Name to exactly FLEXLM_TIMEOUT .
In the Autodesk Moldflow environment, Error 99998 is a generic "catch-all" execution error. It indicates that the simulation engine (the solver) stopped unexpectedly before completing the task. While it can be caused by mesh issues or connectivity, the "exclusive" variant usually points toward a or hardware resource limitations . Common Causes of Error 99998 1. File Access and Permissions
Causes
, where the license level (Standard, Premium, Ultimate) hasn't been set correctly. Moldflow License Configuration autodesk moldflow error 99998 exclusive
Troubleshooting Autodesk Moldflow Error 99998: Exclusive Access and Analysis Failures
Restart Moldflow and the machine
This article provides a deep dive into what causes Moldflow Error 99998, how the "exclusive" usage factor affects it, and step-by-step solutions to restore your simulation capabilities. What is Moldflow Error 99998? : Select Environment Variables at the bottom of the dialog
: Services like OneDrive, Dropbox, or SharePoint may attempt to sync files while the solver is actively writing data, causing an access violation.
This is a sneaky one. If you have Windows File Explorer open and you have clicked on a .sdy or .mfr file, Windows locks that file to generate a thumbnail preview. Moldflow cannot get "exclusive" access because Windows is reading the header.
Navigate to the licensing helper directory (usually C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing\Current\helper\ ). In the Autodesk Moldflow environment, Error 99998 is
Try replacing the hostname with the actual IP address of the license server within the ADSKFLEX_LICENSE_FILE registry key. 4. Reinstall/Repair License Configuration Sometimes the license configuration files become corrupted.
End these tasks to release the "exclusive" hold on the license. Verify License Configuration