Some Legacy Subsystems Wont Get Windows 64-Bit Support
The portable operating-system interface for Unix, 16-bit computing and the OS/2 subsystem will 'be lost' along with some legacy transport protocols, product manager for the Windows 64-bit client says.SEATTLEWhile Microsofts upcoming Windows 64-bit client for extended systems will be almost feature-compatible with Windows XP Professional, some legacy subsystems and transport protocols will not be supported in that release. "Not included in 64-bit Windows are some legacy subsystems like 16-bit support, the OS/2 subsystem and the portable operating-system interface for Unix [Posix]. Some of the legacy transport protocols will also be lost," Brian Marr, product manager for the Windows 64-bit client, said Wednesday at a session on 64-bit computing during the Windows Hardware Engineering Conference (WinHEC) here.
In March 2003, Microsoft released Windows XP 64-Bit Edition, which supported the Itanium processor family. The next version of the product for 64-bit x86 extensions will be released in the fourth quarter of this year, and it will give users the ability to run their 32-bit applications today and then move to 64-bit computing down the road, he said.