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1. #Buy microsoft windows xp professional x64 how to#
2. #Buy microsoft windows xp professional x64 registration#

Registry redirection also makes sure that the registry calls are directed to the correct branches in the registry. The WOW64 subsystem uses registry redirection to intercept registry calls at the bit level.

#Buy microsoft windows xp professional x64 registration#

To support the coexistence of 32-bit and 64-bit COM registration and program states, the WOW64 subsystem presents 32-bit programs by using another view of the registry. Native mode 64-bit programs run in Native mode and access keys and values that are stored in the following registry subkey:ģ2-bit programs run in WOW64 mode and access keys and values that are stored in the following registry subkey: The registry redirection process enables program installations and program configuration settings to access the correct registry subkey without user intervention.ģ2-bit programs and 64-bit programs that are running on an 圆4-based version of Windows operate in different modes and use the following sections in the registry: Users do not notice any changes during program installation. To prevent 32-bit registry settings from overwriting the 64-bit registry settings, computers that are running an 圆4-based version of Microsoft Store the settings for 32-bit programs in a new branch in the registry. dll paths, program settings, and other parameter values are not overwritten. The registry layout changes in 圆4 Edition versions of the Windows operating system make sure that the programs hard-coded.

#Buy microsoft windows xp professional x64 how to#

For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: 322756 How to back up and restore the registry in WindowsĬomputers that are running an 圆4-based version of Microsoft Windows Server 2003 or Microsoft Windows XP Professional 圆4 Edition use a different registry layout to handle both 32-bit and 64-bit programs. Then, you can restore the registry if a problem occurs. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully. However, serious problems might occur if you modify the registry incorrectly. This section, method, or task contains steps that tell you how to modify the registry.