The installation ends prematurely because of an error.
The following tech note from Microsoft may apply:
OFF2000: "Installation Ended Prematurely Because of an Error" When You Run Office Setup This article applies to… This article was previously published under Q230895 SYMPTOMS When you run Office Setup, you may receive the following error message immediately after you click Install Now or Upgrade Now:
Installation ended prematurely because of an error. When you click OK, Setup ends. CAUSE This error may appear if all the following are true: You are using Microsoft Windows NT 4.0. -and-
You are running Office Setup from a CD-ROM drive. -and-
You are using one of the security templates available with the Microsoft Security Configuration Manager. -and-
You have the Restrict CD-ROM access to locally logged on user only security option turned on. This is because the Windows Installer runs as Local System when it is read off the CD-ROM drive. The problem is that Local System is denied access to the CD-ROM drive when this security policy is set.
NOTE: This error message also may appear if you do not have the Restrict CD-ROM access to locally logged on user only security option turned on but the AllocateCDRoms value under the following registry key is set to 1: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
WORKAROUND To work around this problem, do either of the following: Method 1: Run Setup from a Network Server If you are in a networked environment and you have access to an administrative installation of Office 2000, run Setup from this location instead of your CD-ROM drive. The security settings mentioned in the "Cause" section of this article do not affect running Setup from a network server. Method 2: Turn Off the "Restrict CD-ROM Access to Locally Logged on User Only" Security Option If you turn off the Restrict CD-ROM access to locally logged on user only security option, you can run Setup from your CD-ROM drive. Please see the documentation on the Microsoft Security Configuration Manager for more information about modifying this setting.
NOTE: You may have to restart after you turn off the Restrict CD-ROM access to locally logged on user only security option before you can run Setup from your CD-ROM drive.
For more information about the Microsoft Security Configuration Manager, visit the following Microsoft Web site:
For additional information about the AllocateCDRoms registry setting, click the article number below to view the article in the Microsoft Knowledge Base: 172520 Access Denied Error When Trying to Access a Shared CD-ROM
221524 FIX: Cannot Install Applications from Media When 'AllocateCDRom or AllocateFloppies' Reg Values Are Set