Did you know that there is a script that was shipped with Windows 2003 SP2 that allows you to recycle your IIS Application Pools.

Below is the command that you use from the command line:

Description: list IIS application pools and associated worker process
             Recycle application pools.</p>
<p>Syntax: IIsApp.vbs [{ /a <app_pool_id> | /p <pid> } [/r] ]</p>
<p>Parameters:</p>
<p>Value              Description
/a <app_pool_id>   Specify an application pool by name. Surround
                   <app_pool_id> with quotes if it contains spaces.
                   If used alone without an accompanying action,
                   IIsApp.vbs will report PIDs of currently running
                   w3wp.exe processes serving pool <app_pool_id>.
/p <pid>           Specify a process by process ID. If used alone
                   without an accompanying action, IIsApp.vbs will
                   report the AppPoolId of the w3wp process specified
                   by <pid>. When a PID is specified with /r, that PI
                   is mapped to an application pool and the action is
                   taken upon the application pool. If a PID is given
                   for a web garden, i.e. an application pool served
                   by more than one w3wp, then all w3wp's for that
                   application pool will be acted upon.
/r                 Recycles the application pool.</p>
<p>DEFAULT: no switches will print out the PID and AppPoolId.</p>
<p>Examples:</p>
<p>IIsApp
IIsApp /p 2368
IIsApp /a DefaultAppPool /r
IIsApp /p 2368 /r