Display PID in PerfMon Process Object Process Name August 19, 2009

http://support.microsoft.com/kb/281884

To enable or to disable PIDs in process names, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfProc\Performance
3. On the Edit menu, click New, and then click DWORD Value.
4. Right-click New Value #1, click Rename, and then type ProcessNameFormat to name the new value.
5. Right-click ProcessNameFormat, and then click Modify.
6. In the Data value box, type one of the following values, and then click OK:
   • 1: Disables PID data. This value is the default value.
   • 2: Enables PID data.
7. Exit Registry Editor.

Identify The W3WP.EXE Application Pool PID August 18, 2009

http://blogs.msdn.com/jb/archive/2006/02/22/536693.aspx

The first way, and by far the easiest, is to use one of the new scripts that come in the box called IISAPP.VBS.  It is located in the %SystemRoot%\system32 directory.

cscript iisapp.vbs