我家系统是winxp sp2，在windows文件夹有五十多个记事本，名字全是以KB开头，后面是一堆数字,下面是例子：（部分）
请哪位给解释一下这些文件是干什么的
[KB910437.log]
1.078: ================================================================================
1.078: 2006/04/06 09:51:12.484 (local)
1.078: C:\WINDOWS\SoftwareDistribution\Download\5b5761c85247ba24e68350887ce8b549\update\update.exe (version 6.2.29.0)
1.078: Failed To Enable SE_SHUTDOWN_PRIVILEGE
1.078: Hotfix started with following command line: -q -z -er /ParentInfo:6624e5496765844ab624a46f3b2f78f2
1.297: ---- Old Information In The Registry ------
1.297: Source:C:\Program Files\LLJAgent\
1.297: Destination:
1.297: Source:C:\Program Files\Common Files\SDAgent\
1.297: Destination:
1.297: Source:C:\DOCUME~1\tfyuh\LOCALS~1\Temp\SDSMyDll\MySetup.dll (1.1.0.0)
1.297: Destination:
1.297: Source:C:\DOCUME~1\tfyuh\LOCALS~1\Temp\SDSMyDll\
1.297: Destination:
1.297: Source:C:\DOCUME~1\tfyuh\LOCALS~1\Temp\mysdsdld\st_2052.exe
1.297: Destination:
1.297: Source:C:\WINDOWS\system32\_000012_.tmp.dll (5.1.2600.2180)
1.297: Destination:
1.297: Source:C:\WINDOWS\system32\SET2A.tmp (5.1.2600.2622)
1.297: Destination:C:\WINDOWS\system32\user32.dll (5.1.2600.2180)
1.297: Source:C:\WINDOWS\system32\SET2B.tmp (5.1.2600.2622)
1.297: Destination:C:\WINDOWS\system32\authz.dll (5.1.2600.2180)
1.297: Source:C:\WINDOWS\system32\SET4A.tmp (5.1.2600.2744)
1.297: Destination:C:\WINDOWS\system32\umpnpmgr.dll (5.1.2600.2180)
1.297: Source:C:\WINDOWS\system32\SET4F.tmp (6.0.2900.2530)
1.297: Destination:C:\WINDOWS\system32\mlang.dll (6.0.2900.2180)
1.297: Source:e:\3f6b30b5445c98d663bcb0fdc665e011\update\msocust.dll

请下载 System Repair Engineer，使用“智能扫描”，按下“扫描”按钮进行扫描，扫描完成后按下“保存报告”按钮保存报告日志文件（SREng.LOG），把保存的报告日志文件内容复制-粘贴上来
下载网址
http://www.kztechs.com/sreng/sreng2.zip
http://forum.ikaka.com/topic.asp?board=67&artid=5188931
日志一次粘不完，分次粘完，请不要修改。