On the Windows 2008 Server instance, open a command window. For example, click Start, Run, and then type cmd.
Change to the PolicyAgent-base\bin directory.
where PolicyAgent-base depends where you unzipped the IIS 7.0 agent distribution file. For example:
For example: C:\Agents\web_agents\iis7_agent\bin
Run the IIS7Admin.vbs script with the -unconfig option. Both the script name and -unconfig option are case-sensitive.
For example: cscript IIS7Admin.vbs -unconfig IIS7Config.txt
where IIS7Config.txt is the agent configuration file for the IIS 7.0 agent on the specific IIS 7.0 server instance.
Restart IIS 7.0 using the iisreset command.