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• A definitve source of Registry info
• Accessing Alternate Registry View
• Additional Key Handles
• Backing up the Registry
• Basic Registry Info and Utilities
• Change Registry Permissions and Modify Read-Only Subkeys
• Changing Registry as Administrator in NT4
• Compare Registry - Before and After
• Connecting to a Registry on a Remote Computer
• Convert Qword
• Converting a Hex DWord Value into Four Octets
• DataItem or Subkey - Does Key Exist and RegQueryValue
• Determine All Extensions Associated with an Application
• Edit a REG File
• Error 5 Opening Registry Key
• Export Color Scheme from Registry
• How to Find a Particular Hive
• How to Make Registry Key Dump to a Text File
• How to Restore Registry in Win95
• How to Save Hive Files in Windows 95
• Importing 64 bit Registry Settings
• Modify Users Registry with Elevated Privileges
• PATH Information and RegApp
• Problem Closing RegConnect Connections Using WntCancelCon
• RegCreateKey Creating Key in Wrong Reg Hive
• RegDeleteKey failing from 64bit to 32-bit server
• RegEdit and Merging Databases
• RegEdit Command Line Options Syntax
• RegEdit Merge Into 64-bit Registry
• Registry Compare
• Registry Editing Permissions and Winbatch
• Registry Entry for WBTs
• Registry Keys additional for NT and 95
• Registry Run Keys - Run and Runonce
• RegLoadHive - RegUnloadHive - and Running REG Files
• RegOpenKeyEx Notes
• RegQueryEx for REG_EXPAND_SZ
• RegQueryKeys and Counting Subkeys
• RegQueryMulSz Problem
• RegSetBin and Hex7 Value
• RegSetDword and Hex
• RegSetDword and Setting Last Bit to 0
• Renaming Registry Keys
• Replace all Occurrences of a String
• Retain Percent Signs in SystemRoot
• Setting Binary Values Greater than 255 Chars
• Setting Unknown Registry Type
• SYSDIFF and other Registry Utilities
• Updating the Registry and Broadcast Message
• Utility to Monitor Registry

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Accessing Alternate Registry View

 Keywords: 32-bit 64-bit Registry Redirect Redirection Alternate View WOW64 SYSWOW64

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By default, a 32-bit WinBatch script running on WOW64 accesses the 32-bit registry view and a 64-bit script accesses the 64-bit registry view.

Windows implements registry redirection in order to prevent 32-bit applications from overwriting the 64-bit registry settings. Computers that are running an x64-based version of Windows store the settings for 32-bit programs in a new branch in the registry.

64-bit programs access keys and values that are stored in the following registry sub key:

HKEY_LOCAL_MACHINE\Software

32-bit programs run in WOW64 mode and access keys and values that are stored in the following registry sub key:

HKEY_LOCAL_MACHINE\Software\WOW6432node

If you would like your script to access the alternative view of the registry, you have a couple of choices:

• RegOpenFlags
  This function lets you specify an alternate view of the registry for Reg[..] functions which create, open, and delete registry keys, when running on (or accessing) a 64-bit Windows platform.
• Registry Functions View-Flag
  The Regisry functions view-flag optional parameter controls which registry view the function uses when accessing the Windows registry. The optional parameter's values can be 32 to use the 32-bit view, 64 to use the 64-bit view, or 0 to use the view indicated by the last call to the RegOpenFlags. The parameter value of 0 can also cause a function to use the WinBatch default 64-bit view, if no call to RegOpenFlags has been made and setting the parameter to 0 is equivalent to omitting the parameter entirely.

2 simple rules to accessing the registry on 64-bit systems:

• NEVER directly access keys stored under WOW6432node.
• If you do want access something under WOW6432node, just set the registry view to 32-bit and specify the key/value without using 'WOW6432node' in the registry path.

Note : You can launch the 32-bit version of Registry Editor on a 64-bit Windows platform using the following commandline:

C:\Windows\syswow64\regedit.exe

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Article ID:   W18226

Filename:   Accessing Alternate Registry View.txt

File Created: 2012:11:14:09:27:14

Last Updated: 2012:11:14:09:27:14