Lots of people sharing on how to install Exchange 2007 via command Shell. How about uninstall?

Lets see:

Log on to the server on which you want to remove one or more Exchange 2007 server roles.
Open a Command Prompt window and navigate to the directory where you installed the Exchange Server 2007 files.

Navigate to the \bin directory.

ExSetup.exe /mode:uninstall /role:

Where , in a comma-separated list:

• Mailbox (or MB, or M)
• UnifiedMessaging (or UM, or U)
• ManagementTools (or MT, or T)
• HubTransport (or HT, or H)
• ClientAccess (or CA, or C)
• EdgeTransport (or ET, or E)