If you create a new application domain, and you use the
Activator class to create a proxy for an object, you may receive the following exception error message from the application:
System.ExecutionEngineException occurred in an unkonwn module
In this error message, "unkonwn" is a misspelling of the word "unknown."
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework 1.1 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
--------------------------------------------------------------
29-Aug-2003 23:05 1.1.4322.939 77,824 Corperfmonext.dll
29-Aug-2003 23:02 1.1.4322.939 311,296 Mscorjit.dll
03-Sep-2003 05:46 1.1.4322.939 2,093,056 Mscorlib.dll
29-Aug-2003 22:56 10,736 Mscorlib.ldo
29-Aug-2003 23:04 1.1.4322.939 2,498,560 Mscorsvr.dll
29-Aug-2003 23:04 1.1.4322.939 2,490,368 Mscorwks.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.