Microsoft Download Center Archive

Psscor4 Managed-Code Debugging Extension for WinDbg

  • Published:
  • Version: 4
  • Category: Tool
  • Language: English

Psscor4 is a Windows Debugger extension used to debug .NET Framework 4 applications

  • Psscor4 can help you diagnose high-memory issues, high-CPU issues, crashes, hangs and many other problems that might occur in a .NET application; in scenarios involving live processes or dump files.If you are familiar with SOS.dll, the managed-debugging extension that ships with the .NET Framework, Psscor4.dll provides a superset of that functionality. Most of the added functionality helps you identify issues in ASP.NET.For example, Psscor4 provides the ability to view:•managed call stacks (with source mappings)•managed exception information•what types are in the managed heap and their reference chain•which ASP.NET pages are running on which thread•the contents of the ASP.NET cache•and much more.


Status: Deleted

This download is no longer available on The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to August 2020.

FileSHA1 HashSize
Psscor4.EXEdecffc00b700773c332938b1f41e6b19fdec49642.59 MB

System Requirements

Operating Systems: Windows 7, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

  • Windows 7;Windows Server 2003;Windows Server 2008;Windows Server 2008 R2;Windows XPYou will also need to have the Debugging Tools for Windows installed.Psscor4 supports debugging applications running on .NET Framework 4

Installation Instructions

  • •Download the Psscor4 self-extracting archive.•Run and extract to a location of your choosing.

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