[V8i] MDL LOAD fail if dgn is located on fileshare

Application: MS SS2 and MS SS3 (08.11.09.357)

HW/SW: Any

Location of workspace + mdl: tested both local and on network.

Hi. This is my first post on Bentley forum, as a result of chating with Conor King from Bentley support, issue #7000061864.

The problem is as following: When opening a dgn file on a fileshare, everything works fine exept running some mdl application via key-in. Typing mdl load pubedit.ma result in the following error:
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OS could not load C:\Statoil\ISYCAD_v8i\mdlapps\intelnt\pubedit.dll, error 161
MDL loader: Unable to load library (DLL or MDL shared library)pubedit.dll
MDL Loader: Could not load application PUBEDIT.
---
The strange thing is that it works very well if the same dgn-file is located on the users C-drive. Everything else is exactly the same. I am also able to load the mdl application (pubedit.ma) via Utilities - MDL-Application. We have at least two mdl applications which cannot be run via key-in, but if I run one of the via Utilities - MDL-Application, the other one can be run via key in MDL LOAD afterwards.

I have also checked MS_ADDINPATH and MS_MDLAPPS. In MS_MDLAPPS, the ma-location is listed as third.

The questions is: Why does this error occure, and how do we solve it? What does error 161 mean?

I have tried to move the workspace from networksdrive to local drive. I have also reinstalled MS, tested on several computers included clean VM Mashines with the exact same result.

Bentley support could not help me, but I need this fixed. There more than 1000 users in this company.

Thanks in advance