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Microsoft Resource Kits - Windows 2003 Resource Kit

Delprof.exe  (Windows 2003 Resource Kit)

The Window Server 2003 Resource Kit is a set of tools that system administrators and engineers use to manage or support a Windows Server 2003 system. Use it to streamline management tasks such as troubleshooting operating system issues, managing Active Directory, configuring networking and security features, and automating application deployment.
Delprof.exe - User Profile Deletion Utility
Deletes user profiles on local and remote computers. You must be logged in as an administrator. Works in Windows NT/XP/2000/2003.
/q - Quiet mode which offers no confirmation for each profile to be deleted
/i - Ignore errors
/p - Prompts for confirmation before deleting a profile.
/r - Only delete cached roaming profiles
/c:\\ComputerName - Specifies a remote computer name
/d:days - Specifies the number of days of inactivity that must exist for a profile to be deleted.