IRPStackSize Last modified: Tuesday, March 25, 2008
In Microsoft operating systems including Windows NT, Windows 2000 Server, Windows XP and Windows Server 2003, the IRPStackSize is a parameter that specifies the number of stack locations in I/O request packets (IRPs) that are used by the operating system. Each stack uses 36 bytes of memory for each receive buffer and you can increase the IRPStackSize, through the Windows registry for some transports, media access control (MAC) drivers, or for file system drivers. The default value of the IRPStackSize parameter is 15.
•E-mail this definition to a colleague• For internet.com pages about IRPStackSize . Also check out the following links! PracticallyNetworked.com  PracticallyNetworked.com provides easy-to-understand help for small-network builders. The site contains how-to information for setting up and debugging home-office and small-business networks. Users can also find extensive troubleshooting information, tips on getting applications to work through firewalls, product reviews on network hardware and software, and more. Webopedia's Quick Reference Section  Use this Webopedia reference section for information on common Internet and computer facts and occurrences. Antivirus software may cause Event ID 2011 The Server's configuration parameter IRPStackSize is too small for the server to use a local device. Please increase the value of this parameter. Description of the IRPStackSize parameter This article describes the functionality of the IRPStackSize parameter in Microsoft Windows 2000 Server, in Microsoft Windows XP, and in Microsoft Windows Server 2003.	Data Structures Windows I/O MAC operating system stack Windows Give Us Your Feedback