While the scripting language in AutoIt 1 and 2 was statement-driven, designed primarily for simulating user interaction, from version 3 onwards the AutoIt syntax is similar to that found in the BASIC family of languages. In this form, AutoIt is a general-purpose, third-generation programming language with a classical data model and a variant data type that can store several types of data, including arrays. While version 1 and 2 were compatible with Windows 95, 98, ME, NT4, 2000, XP, 2003, Vista and Windows 7, support for operating systems older than Windows 2000 was discontinued with the release of v3.3.0 in December 2008).