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Application hangs up. System.Reflection.TargetException

Posted on 2009-02-09
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Last Modified: 2013-11-25
Application is a VB6 - EXE  (C.EXE) calling 2 VB .NET DLLs (A.DLL and B.DLL)
On the development PC (PCDev, Windows XP) all runs without problems, in the IDE or as executables.

On another PC (PCUser, Windows XP) it is installed as executables. On this PC, during a long running function in B.DLL following exception is raised, after the function has been running for a while:

"An exception 'System.Reflection.TargetException' has occurred in DefaultDomain. However, no debuggers are registered that can debug this exception. Unable to JIT debug."
During the message is shown, the applications window disappears and the app stops running.

Configuration on PCUser should be correct: a previos Version of the Application (with other versions of C.EXE, A.DLL and B.DLL ran without problems on PCUser.
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Question by:joachim58
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joachim58 earned 0 total points
ID: 23590495
We found that the PCUser was the only one with .NET framework 1.1 and 2.0 installed .

After removing .NET Framework 2.0 the problem did not occur any longer. (that leads us to the next problem: what to do with users, who need  both frameworks?)
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