IIS 6 （Win2003 ）中查看某个应用程序池对应那个 W3WP.exe 进程，可以使用如下命令，输出结果类似如下：

C:\WINDOWS\system32>cscript iisapp.vbs
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.
W3WP.exe PID: 1172 AppPoolId: StsAdminAppPool
W3WP.exe PID: 2656 AppPoolId: MSSharePointAppPool
W3WP.exe PID: 2148 AppPoolId: WMS App Pool
W3WP.exe PID: 3604 AppPoolId: defaultwebsite

参看这篇博客： http://blogs.msdn.com/jb/archive/2006/02/22/536693.aspx

IIS 7 中则是如下命令，输出结果类似如下：

C:\Windows\system32>%windir%/system32/inetsrv/appcmd list wp
WP “5716″ (applicationPool:DefaultAppPool)
WP “968″ (applicationPool:MyOtherAppPool)
WP “5836″ (applicationPool:TheThirdAppPool)