Autodesk Moldflow Error 99998 Exclusive May 2026
Before you submit a support ticket to Autodesk, run this 60-second drill:
Are you running the study from a network drive (Z: or Y:)? Moldflow struggles with high-latency connections. When the solver asks for exclusive write access over a slow VPN or WiFi, the handshake times out and throws Error 99998. autodesk moldflow error 99998 exclusive
The Fix:
Follow this sequence from least to most invasive. Do not skip steps. Before you submit a support ticket to Autodesk,
To fix a problem, you must understand its language. Autodesk Moldflow uses a licensing system based on FLEXlm/FlexNet (now managed by Autodesk Licensing Service). When you run a analysis, the solver requests a license feature. The 99998 error code is a generic system-level error indicating a resource deadlock, but the suffix "exclusive" points to a specific subtype. Then have the Moldflow user reconnect
For network administrators, use the openfiles command to list and disconnect stale locks:
openfiles /query /s ServerName /u Domain\Admin
openfiles /disconnect /s ServerName /id 12345
Then have the Moldflow user reconnect.