Active Directory Service Interfaces: A set of COM interfaces used to access the features of directory services from different network providers. ADSI is used in a distributed computing environment to present a single set of directory service interfaces for managing network resources. Administrators and developers can use ADSI services to enumerate and manage the resources in a directory service, no matter which network environment contains the resource.
ADSI enables common administrative tasks, such as adding new users, managing printers, and locating resources in a distributed computing environment.
Asymmetric Digital Subscriber Line: A form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A splitter – or microfilter – allows a single telephone connection to be used for both ADSL service and voice calls at the same time. Because phone lines vary in quality and were not originally engineered with DSL in mind, it can generally only be used over short distances, typically less than 4km.
Advanced Encryption Standard: A block cipher adopted as an encryption standard by the U.S. government, also known as Rijndael.
Application Information Service: A service in Windows Vista. See Vista’s Application Information Service
Application Layer Gateway: A service in Windows Vista. See Vista’s Application Layer Gateway Service
Audio Processing Object: Audio processing which can be inserted in the sound stream to modify it. There are two types of APO: GFX (Global) LFX (Local).
Audio Stream Input/Output: A computer soundcard driver protocol for digital audio specified by Steinberg, providing a low-latency and high fidelity interface between a software application and a computer’s sound card. Whereas Microsoft’s DirectSound is commonly used as a stereo input and output for non-professional users, ASIO allows musicians and sound engineers to process their audio via Windows’ computer software instead of external hardware.
Active State Power Management: Allows power to be incrementally reduced to individual serial links in a PCI Express fabric as a link becomes less active.
ActiveX Installer Service: The ActiveX Installer Service allows users to load ActiveX controls on systems without admin privileges. It is intended for use by business and enterprise (it’s only available in the Business, Enterprise and Ultimate additions of Windows Vista) that would like machines locked down, but still have services that use ActiveX controls.