3D DDI: 3D Device Dependent Interface
3DDDI: 3D Device Dependent Interface
AAF: Advanced Authoring Format
AATP: Authorized Academic Training Program
ACE: access control entry
ACL: Access Compatibility Layer
ACL: Access Control List
ACPI: Advanced Configuration and Power Interface
ACT: Application Compatibility Toolkit

AD: Active Directory
ADC: Advanced Data Control
ADE: Access 2003 Developer Extensions
ADMT: Active Directory Migration Tool

ADO: ActiveX Data Objects
ADO.NET: ADO for .NET
ADS: Active Directory Service
ADS: Active Directory Services

ADS: Automated Deployment Service
ADSI: Active Directory Service Interface
ADSI: Active Directory Service Interfaces

ADT: Access Developer's Toolkit
AERO: Authentic, Energetic, Reflective, Open
AFC: Application Foundation Classes
AIS: Application Information Service
APIPA: Automatic Private IP Addressing
as: Advanced Server
as: authentication service
ASA: Active Server Application
ASC: Authorized Support Center
ASF: Advanced Streaming Format

ASP: Active Server Pages
ASR: Automated System Recovery
ASSUME: Association of Statistics Specialists Using Microsoft Excel
ATC: Authorized Testing Center
ATEC: Authorized Training and Education Center

ATL: Active Template Library
ATL: ActiveX Template Library
AVI: Audio Video Interleaved
BAML: Binary Application Markup Language

BAPCO: Business Application Performance COrporation