Thread: UNIX subsystem in vista?

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  1. #1 UNIX subsystem in vista? 
    Senior Member PSP Elite Hacker
    Join Date
    Jul 2006
    ok, this is news to me, but I was perusing my "Windows Features" under the programs and features manager while trying to fix my msn messenger stability problems, and I stumbled across what's called "Subsystem for UNIX-Based Applications" and it's described as: "Subsystem for Unix-based Applications (SUA) is a source compatibility subsystem for compiling and running custom UNIX-based applications and scripts on a computer running Windows operating system". It's disabled by default. I've never heard any mention of this before, has anyone else?

    Edit: this is what a search on ms' site turns up:

    Subsystem for UNIX-based Applications (SUA) is a source-compatibility subsystem for compiling and running custom UNIX-based applications on a computer running a Windows server-class operating system. You can make your UNIX applications fully interoperable with Windows in SUA with little or no change to your original source code.

    Subsystem for UNIX-based Applications provides an operating system for Portable Operating System Interface (POSIX) processes. SUA, along with its package of support utilities (such as shells and a Telnet client) available for download on the Microsoft Web site, provides a complete UNIX environment. The download package includes a comprehensive set of scripting utilities, and a software development kit (SDK) designed to fully support the development capabilities of SUA and to provide a complete UNIX-based application development experience.

    SUA also supports case-sensitive file names, job control, compilation tools, and the use of over 300 UNIX commands, utilities, and shell scripts. Because the subsystem installs separately from the Windows kernel, it offers true UNIX functionality without any emulation.

    New features for Windows Server 2003 Release 2
    New features for Windows Server 2003 Release 2 (R2) include the following:

    • Database (OCI/ODBC) library connectivity. SUA supports connectivity to Oracle and SQL Server from database applications by using the Oracle Call Interface (OCI) and the Open Database Connectivity (ODBC) standard.

    • Microsoft Visual Studio Debugger Extension for debugging POSIX applications. SUA includes support for debugging your POSIX processes using Visual Studio IDE.

    • Utilities based on SVR-5 and BSD UNIX environments. The SUA download package supports two different UNIX environments: SVR-5 and BSD.

    • Support for 64-bit applications. Using a process called thunking, SUA provides support not only for 64-bit applications running on a 64-bit operating system, but also default support for 32-bit binaries running on a 64-bit operating system.

    This is awesome!
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  2. #2  
    Senior Member PSP Elite Hacker DarkED's Avatar
    Join Date
    Dec 2006
    This has actually been around since Windows 95.

    Just FYI, this whole thing is just a compatibility layer. It's kinda like Cygwin but it doesn't run apps, it just provides support for their instructions. UNIX apps must still be compiled into a Windows executable before they'll run.
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  3. #3  
    Senior Member I Modded My PSP WarstrongXan's Avatar
    Join Date
    Mar 2006
    Linux is the king of all things, seriously. It's in part responsible for OS X and beats windows (IMO atleast) in terms of coolness and usability if you are smart and get the right version for your computer literacy/ability.

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