Windows installer cleanup utility
| Article ID | : | 290301 | 
| Last Review | : | May 7, 2007 | 
| Revision | : | 5.6 | 
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SUMMARY
The Windows Installer CleanUp Utility does not perform the following functions:
- Remove Windows Installer
- Remove files of any programs that are installed by Windows Installer, such as Microsoft Office 2003
The Windows Installer CleanUp Utility does perform the following functions:
- Provides a dialog box in which you can select one or more 
				programs that were installed by Windows Installer- To do this, select the programs that you want in the Installed Products list in the Windows Installer CleanUp dialog box. After you make this selection, the utility removes only the Windows Installer configuration information that is related to those programs.
 
- Removes the files and registry settings that make up the 
				Windows Installer configuration information for programs that 
				you select
 
If you use this utility to remove the Windows Installer configuration information for your program and you plan to reinstall the program, you should reinstall the program in the same folder where you originally installed it. This prevents duplication of files on your hard disk or disks.
MORE INFORMATION
- Microsoft Windows Vista
- Microsoft Windows Server 2003
- Microsoft Windows XP
- Microsoft Windows Millennium Edition
- Microsoft Windows 2000
- Microsoft Windows NT 4.0 with Service Pack 3 or later
- Microsoft Windows 98
- Microsoft Windows 95
This version of the Windows Installer CleanUp Utility works correctly in all 64-bit versions of Microsoft Windows. The 64-bit versions of Microsoft Windows are as follows:
- Microsoft Windows Server 2003
- Microsoft Windows XP
- Microsoft Windows Vista
The following file is available for download from the Microsoft 
			Download Center:
			Download the 
			Windows Installer Cleanup Utility package now. 
			(or you can download it at 
			http://download.microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e1bd/msicuu2.exe) 
			
Contents of the Readme.txt file
README FOR WINDOWS INSTALLER CLEAN UP UTILITY version 3
			SEPTEMBER, 2006
			
			WHAT IS THE WINDOWS INSTALLER CLEAN UP UTILITY?
			The Windows Installer Clean Up Utility is a tool that can be used to 
			remove Windows Installer configuration management information if a 
			problem occurs. 
			
			*** NOTE: The Windows Installer Clean Up Utility should not be used 
			to remove the 2007 Microsoft Office System installation information. 
			***
			
			 The Windows Installer configuration management information can 
			become damaged if any of the following issues occur:
			
			 - The computer's registry becomes corrupted.
			
			 - A registry setting that is used by the Windows Installer is 
   inadvertently changed, and this change results in a problem.
			
			 - The installation of a program that uses Windows Installer (for
			
   example, Microsoft Office 2003) is interrupted.
			
			 - There are multiple instances of a setup program running at the 
			same time, or 
   an instance of a setup program is "blocked."
			
			
			WHAT HAPPENED TO MSICU.EXE?
			In the original release, there were two versions of the Windows 
			Installer Clean Up Utility: Msicu.exe (for use in Microsoft Windows 
			95, Windows 98 and Windows ME), and Msicuu.exe (for use in Windows 
			NT, Windows 2000, Windows XP, and Windows Server 2003). Msicu.exe 
			was removed because Msicuu.exe now works with all 32-bit versions of 
			Microsoft Windows.
			
			
			WHAT IS MSIZAP.EXE?
			The Windows Installer Clean Up Utility uses the Msizap.exe program 
			file to perform cleanup operations on the Windows Installer 
			configuration management information. Microsoft does not recommend 
			that you run Msizap.exe manually, because Msizap.exe uses a 
			command-line interface. Msizap.exe does not provide the same ease of 
			use or level of protection as the Windows Installer Clean Up 
			Utility.
			
			
			WHY IS THERE NO MSIZAP.EXE IN THE EXTRACTED FILES?
			There are two versions of MSIZAP.EXE: MsiZapA.exe (for use in 
			Windows 95, Windows 98 and Windows ME), and MsiZapU.exe (for use in 
			Windows NT, Windows 2000, Windows XP, and Windows Server 2003). The 
			appropriate executable must be renamed MsiZap.exe in order for the 
			Windows Installer Clean Up Utility to work correctly. The 
			installation process renames and installs the correct version 
			automatically.
			
			
			HOW DO I INSTALL THE WINDOWS INSTALLER CLEAN UP UTILITY?
			When you download the utility, choose either Install or Save (if you 
			choose Save then run the downloaded executable from the folder in 
			which you saved the executable). By default, the setup program 
			installs the Windows Installer Clean Up Utility files to a folder 
			beneath the Program Files folder. This folder is called "Windows 
			Installer Clean Up."
			All the files that are used by the utility (Msicuu.exe, Msizap.exe, 
			and this Readme file) are copied into this folder, and a shortcut is 
			created on the Programs menu under the Start menu.
			
			The files may also be extracted manually from the downloaded file. 
			However, after you do this, you must rename the appropriate 
			MsiZap*.exe file "MsiZap.exe." (NOTE: If you use the utility on 
			Windows 95/98/98SE/ME, rename MsiZapA.exe. Otherwise, rename 
			MsiZapU.exe.)
			
			
			HOW DO I RUN THE WINDOWS INSTALLER CLEAN UP UTILITY?
			To run the Windows Installer Clean Up Utility, use either of the 
			following methods:
			 - Click 'Start', click 'All Programs' (or 'Programs' on some 
			operating systems), and then click the shortcut for the 
   Windows Installer Clean Up Utility.
			 - Find and run the Msicuu.exe file.
			
			A dialog box will be displayed that contains a message, a list of 
			installed products, and four buttons.
			
			The message that is displayed is as follows:
			
   Continuing further will make permanent changes to your system. You 
			may
   need to reinstall some or all applications on your system that used 
			the
   Windows Installer technology to be installed. If you do not want to
			
   proceed, please press the 'Exit' button now. Choosing 'Remove' will
			
   make the permanent changes.
			
			The list contains the titles of all the installed programs that are 
			registered with Windows Installer. Because the Windows Installer 
			Clean Up Utility installation also uses Windows Installer, the 
			Windows Installer Clean Up Utility should be included in the list. 
			Select the programs that you wish to remove. (To select multiple 
			items in the list, hold down the SHIFT key or the CTRL key as you 
			select the items.)
			
			The four buttons in the dialog box are as follows:
			
   [Select All] - Selects all the programs in the list.
			
   [Clear All] - Clears the selection of all the programs in the list.
			
   [Remove] - Removes the Windows Installer installation information 
			for 
      the selected program or programs.
			
   [Exit] - Exits the Windows Installer Clean Up Utility.
			
			If you click 'Remove,' the following prompt is displayed:
			
   Warning - All items selected will be removed from the Windows 
			Installer 
   database. In order for the items to work properly, you must 
			individually 
   re-install all items selected. Select OK to continue removing 
			product,
   Cancel to abort.
			
			If you click 'OK,' all the Windows Installer information that is 
			associated with the selected programs is removed. This includes the 
			entries for the programs in the Add/Remove Programs tool in Control 
			Panel. If you remove the installation information for an installed 
			program, the program is prevented from being able to add or remove 
			components or to repair itself. NOTE: If you remove the installation 
			information, files or shortcuts for the programs themselves are not 
			removed. You should reinstall the programs before you try to use 
			them.
			
			
			WHAT IF I RECEIVE AN ERROR MESSAGE?
			The following table lists the Windows Installer Clean Up Utility 
			error messages that you may receive and the cause for each message.
			
   Error message:                           
			
      This utility requires that Msizap.exe version 2 
			or greater reside in the same folder.                                 
			
   Cause:
      Msizap.exe version 2 or a later version of 
			Msizap.exe cannot be found in the same folder as Msicuu.exe.
   
			---------------------------------------------------------------------------
   Error message:                           
			
      You must have Administrator rights to run this 
			utility.             
			
   Cause:
      To run Msicuu.exe, you must be logged on with 
			administrator rights.
   
			---------------------------------------------------------------------------
   Error message:                           
			
      This utility requires that the Windows Installer 
			be installed and properly registered.
   Cause:
      Msicuu.exe uses the Windows Installer object 
			model to identify the installed products. 
      To correct the problem, try reregistering 
			Msi.dll.
			
			
			HOW DO I REMOVE THE WINDOWS INSTALLER CLEAN UP UTILITY?
			When the Windows Installer Clean Up Utility is installed, an entry 
			for the utility is created in the Add/Remove Programs tool in 
			Control Panel. To remove the Windows Installer Clean Up Utility, 
			click the entry in the list of installed programs, and then click 
			'Remove.'
			 
