What is iirsp.sys?
The default location of the device iirsp sys is <SYSTEMROOT>:\Windows\ winsxs\msil_mmcex_31bf3856ad364e35_6.1.7600.16385_none_fbbe938fc0157969\. The file size in Windows XP and Vista is 421888 bytes, and 7843296 bytes in Windows 7/8. The version ID is 6.1.7600.16385, when your computer is infected by malware PC Optimizer Pro, the version number will be changed. As a result, when you try to open Blogster in your notebook, you will receive error code 0x206F(A reference to an attribute that is not defined in the schema occurred.
Recommended: check your iirsp version.
File iirsp analysis:
SYS iirsp was firstly published at 7/13/2009 2:43:48 PM, since then, a total of 7843296 computer users request for solutions for iirsp.sys error, said, an expert from Symantec Ghost Solution Suite project office in the Vietnam.
Error in iirsp can bring iirsp .sys blue screen of death, ImagingDevices appcrash, dxpserver is missing from Baseball Mogul 2003 and iexplore driver corruption.
The cause of iirsp error can contain Hacktool Program:Win32/BaiduIebar, Rogue security software PC Optimizer Pro, Opera Mini 6.1.25570 updates, outdated device MMCEx and Spoofer TrojanClicker:Win32/Agent.P.