To start and open a 32-bit command prompt, follow these steps: The 32-bit command prompt automatically redirects file system calls to the correct 32-bit directory. When this is not possible, or when have to access original native Program Files folder, user can type the command-line script at a 32-bit command prompt. To access the correct folder, programmer or developer must change the command-line script, or using Sysnative virtual directory alias to access %windir%\System32 instead of %windir%\SysWOW64. The WOW64 subsystem redirects and installs 32-bit programs in the “Program Files (x86)” and “%systemroot%\SysWOW64” folder. cmd batch script may not be able to access, install, change, modify, delete or write to “Program Files” or “%windir%\System32” folder.
The command prompt (cmd.exe) is also affected by File System Redirection feature, where command line commands or. Other than separate registry hive for WOW64 redirected 32-bit values, %systemroot%\System32 and Program Files folder is designated as 64-bit DLLs only too, and all access or I/O of 32-bit binaries been redirected from %windir%\System32 folder to the %windir%\SysWOW64 folder, and from Program Files to Program Files (x86) directory. To reduce compatibility issue and prevent a 32-bit program from accidentally accessing data from 64-bit application, WOW64 subsystem isolates 32-bit binaries from 64-bit binaries by redirecting registry calls and some file system calls. 64-bit or 圆4 version of Windows operating system such as Windows Server 2003, Windows XP Professional 圆4 Edition, Windows Vista and Windows Server 2008 uses the Microsoft Windows-32-on-Windows-64 (WOW64) subsystem layer to run 32-bit programs, binaries or drivers without modifications, change or transition to 64-bit based binaries, as the 64-bit OS is optimized to run native 64-bit programs and does not provide support for 16-bit binaries or 32-bit drivers.
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