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  2. Windows API - Wikipedia

    en.wikipedia.org/wiki/Windows_API

    One of the largest changes to the Windows API was the transition from Win16 (shipped in Windows 3.1 and older) to Win32 (Windows NT and Windows 95 and up). While Win32 was originally introduced with Windows NT 3.1 and Win32s allowed use of a Win32 subset before Windows 95, it was not until Windows 95 that widespread porting of applications to ...

  3. Environmental subsystem - Wikipedia

    en.wikipedia.org/wiki/Environmental_subsystem

    They allow the operating system to run software developed for the platform in question. For example, Windows NT 4.0 has four environmental subsystems, for example Win32, DOS or Win16, OS/2, and POSIX, the latter of which is a Unix standard. [1] The latter resides primarily in the Dynamic Link Library posix.dll.

  4. Windows on Windows - Wikipedia

    en.wikipedia.org/wiki/Windows_on_Windows

    In computing, Windows on Windows (commonly referred to as WOW) [1] [2] [3] is a discontinued compatibility layer of 32-bit versions of the Windows NT family of operating systems since 1993 with the release of Windows NT 3.1, which extends NTVDM to provide limited support for running legacy 16-bit programs written for Windows 3.x or earlier.

  5. Client/Server Runtime Subsystem - Wikipedia

    en.wikipedia.org/.../Client/Server_Runtime_Subsystem

    The Client/Server Runtime Subsystem, or csrss.exe, is a component of the Windows NT family of operating systems that provides the user mode side of the Win32 subsystem.In modern versions of Windows, it is primarily involved with process and thread management, console window handling, side-by-side assembly loading and the shutdown process.

  6. Network security - Wikipedia

    en.wikipedia.org/wiki/Network_security

    Network security are security controls, policies, processes and practices adopted to prevent, detect and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. [1] Network security involves the authorization of access to data in a network, which is controlled by the network ...

  7. MIL-STD-498 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-498

    MIL-STD-498 standard describes the development and documentation in terms of 22 Data Item Descriptions (DIDs), which were standardized documents for recording the results of each the development and support processes, for example, the Software Design Description DID was the standard format for the results of the software design process.

  8. Why did I receive an email from MAILER-DAEMON? - AOL Help

    help.aol.com/articles/what-is-a-mailer-daemon...

    When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you. These messages are sent automatically and often include the reason for the delivery failure.

  9. Local Security Authority Subsystem Service - Wikipedia

    en.wikipedia.org/wiki/Local_Security_Authority...

    Local Security Authority Subsystem Service (LSASS) [1] is a process in Microsoft Windows operating systems that is responsible for enforcing the security policy on the system. It verifies users logging on to a Windows computer or server, handles password changes, and creates access tokens. [2] It also writes to the Windows Security Log.