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The pcregrep command is an implementation of grep that uses Perl regular expression syntax. [17] Similar functionality can be invoked in the GNU version of grep with the -P flag. [18] Ports of grep (within Cygwin and GnuWin32, for example) also run under Microsoft Windows. Some versions of Windows feature the similar qgrep or findstr command. [19]
Windows XP x64 Edition ships with both 32-bit and 64-bit versions of Windows Explorer. [20] The 32-bit version can become the default Windows Shell. [24] Windows XP x64 Edition also includes both 32-bit and 64-bit versions of Internet Explorer 6, so that users can still use browser extensions or ActiveX controls that are not available in 64-bit ...
Two versions of Windows XP 64-Bit Edition were released: Windows XP 64-Bit Edition for Itanium systems, Version 2002 – Based on Windows XP codebase, was released simultaneously alongside the 32-bit (IA-32) version of Windows XP on October 25, 2001. [37] Windows XP 64-Bit Edition, Version 2003 – Based on Windows Server 2003 code base (which ...
Windows XP 64-bit Edition, an operating system for IA-64 processors Topics referred to by the same term This disambiguation page lists articles associated with the title Windows XP 64-bit .
It is only available with the long mode (64-bit mode) or legacy Physical Address Extension (PAE) page-table formats, but not x86's original 32-bit page table format because page table entries in that format lack the 64th bit used to disable and enable execution. Windows XP SP2 and later support Data Execution Prevention (DEP).
The first, Windows XP 64-Bit Edition, was intended for IA-64 systems; as IA-64 usage declined on workstations in favor of AMD's x86-64 architecture, the Itanium edition was discontinued in January 2005. [57] A new 64-bit edition supporting the x86-64 architecture, called Windows XP Professional x64 Edition, was released in April 2005. [58]
It also uses the topmost bit of the 64-bit page table entry as a no-execute or "NX" bit, indicating that code cannot be executed from the associated page. The NX feature is also available in protected mode when these CPUs are running a 32-bit operating system, provided that the operating system enables PAE.
On a low-end computer system, Windows XP outperformed Windows Vista in most tested areas. Windows OS network performance depends on the packet size and used protocol. However, in general, Windows Vista compared to Windows XP shows better network performance particularly for the medium-sized packets. [7]