Exceptions in a service causes the Just-In-Time (JIT) debugger not to appear, and the computer stops responding (128896)
The information in this article applies to:
- The Integrated Debugger, when used with:
- Microsoft Visual C++, 32-bit Editions 2.0
- Microsoft Visual C++, 32-bit Editions 2.1
- Microsoft Visual C++, 32-bit Editions 4.0
- Microsoft Visual C++, 32-bit Enterprise Edition 5.0
- Microsoft Visual C++, 32-bit Enterprise Edition 6.0
- Microsoft Visual C++, 32-bit Professional Edition 5.0
- Microsoft Visual C++, 32-bit Professional Edition 6.0
- Microsoft Visual C++, 32-bit Learning Edition 6.0
This article was previously published under Q128896 SYMPTOMS
When Just-In-Time (JIT) debugging is enabled in Microsoft Visual C++, applications
that cause exceptions (debuggees) display a dialog box that will allow you to
start the debugger.
If a process that is running in a different context, such as a service, causes an
access violation or another exception in Microsoft Windows NT 3.5, the
dialog box appears. However, the debugger never appears, and the process causes the
computer to stop responding (hang).
CAUSE
When Windows NT starts the debugger after a fault, it runs in the same
context as the application that faulted. Many services run in the
LocalSystem account, which does not have access to the user desktop by
default. Because the process cannot interact with the desktop, the debugger
also cannot interact with the debugger.
RESOLUTION
Beginning with version 3.5 of Windows NT, you can allow a service to
interact with the desktop. To do this, use one of the following methods: - Use the SERVICE_INTERACTIVE_PROCESS flag when you call CreateService().
- Follow these steps:
- In Control Panel, open Services.
- Select the service, click Startup, and then click to select Allow Service to Interact with Desktop.
STATUS
This behavior is by design in Windows NT 3.1 and 3.5. This problem does not
occur in Windows NT 3.51.
| Modification Type: | Major | Last Reviewed: | 9/30/2005 |
|---|
| Keywords: | kbtshoot kbBug kbDebug kbide kbprb KB128896 kbAudDeveloper |
|---|
|