8.058 bytes

System Support Disks

Document ID: DDSE-3NDJWP

CrossBrand - IBM AntiVirus and Windows NT 4.0 error "irpstacksize too small"

Applicable to: World-Wide

P/N irpstack.reg

Description irpstack.reg is the IBM AntiVirus fix for IrpStackSize too small error for Windows NT 4.0.

P/N irpstack.reg

Name & Size (bytes) irpstack.reg : 125

WWW URL(s) ftp://ftp.infania.net/pccbbs/pc_servers/irpstack.reg

The following disk images can be detached and diskettes created from them.
For more help on handling file attachments click on this doclink

- irpstack.reg

Disk Release Date:	31-10-97
Disk Version/Release:	1.0
Additional Information:	Symptom: Any machine running IBM AntiVirus 2.52 or 3.0 on Windows NT 4.0 may receive the following error in the Server and the Client's Eventlogs: "The server's configuration parameter "IPRstackSize" is too small for the server to use a local device. Please increase the value of this parameter... " Temporary Workarounds: There are 3 workarounds. If you are not receiving the error message detailed above, do not apply this fix. It will reduce system performance. 1. In the registry, add the following value: Be aware that improper changes to the registry could cause the system to not start. In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Service\LanManServer\Parameters add the Value IrpStackSize, type is DWORD, data is 12 in decimal. IrpStackSize is Case Sensitive. 2. Detach IrpStackSize.reg. For Netscape users Shift + click on the file to download. For Microsoft Internet Explorer users right click on the file and select the download or save to disk option. Once the file is downloaded to your machine, double-click IrqStackSize.reg and it will input the proper information in the registry. Reboot after the registry is changed. 3. Contact IBM Anti-virus Support for a fix. http://www.av.ibm.com Resolution: IBM AntiVirus has identified this as a bug in 2.51 and 3.0 of their code and has pledged a fix in the next version. Explanation: IBM AntiVirus "watches" every file that is ever sent/delivered to the server it is monitoring. This process of taking the files and checking them fills up the IRP stack in NT. Increasing this value to 12 allows enough buffer space for the system to function normally.

	Search Keywords
	Disk Category	Windows NT
	Date Created	31-10-97
	Last Updated	03-02-99
	Revision Date	03-02-2000
	Brand	IBM PC Server
	Product Family	Clustering, Fibre Channel Solutions, Netfinity 3000, Netfinity 3500, Netfinity 5000, Netfinity 5500, Netfinity 5500 M10, Netfinity 7000, Netfinity 7000 M10, PC Server 300, PC Server 310, PC Server 315, PC Server 320, PC Server 325, PC Server 330, PC Server 500, PC Server 520, PC Server 704, PC Server 720, Rack/Storage Enclosures, Server 85, Server 95, Server 195, Server 295, Systems Management
	Machine Type	Various, 8476, 8644, 8659, 8660, 8661, 8651, 8680, 8640, 8639, 8638, 8641, 8650, 8642, 3503, 3510, 3511, 3516, 3517, 3518, 3519, 3520, 3527, 3551, 9306, 9585, 9595, 8595, 8600
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