JSI Tip 7521. How do I use DCPROMO /FORCEREMOVAL when a demotion fails?

Microsoft Knowledge Base Article 332199 contains the following Description:

Fixes the problem where domain controllers may not demote gracefully when you use the Active Directory Installation Wizard (Dcpromo.exe) to force demotion if a required dependency or operation fails in Windows Server 2003 or in Windows 2000 Server.