Access Violation in Mpr.dll During Startup (236959)



The information in this article applies to:

  • Microsoft Windows NT Server 4.0 Terminal Server Edition
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server, Enterprise Edition 4.0

This article was previously published under Q236959

SYMPTOMS

When you start a computer with a large number of services installed, an access violation may occur in Mpr.dll during the boot procedure because of a lack of heap memory.

CAUSE

This behavior may occur if Mpr.dll does not allocate memory for a control block. In such a case, Mpr.dll tries to free the control block with an incorrect pointer.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

STATUS

Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT Server version 4.0, Terminal Server Edition Service Pack 6.

Modification Type:MinorLast Reviewed:9/14/2006
Keywords:kbHotfixServer kbQFE kbbug kbfix KB236959