The FlexTerm macro scripting language is based on the Microsoft Visual Basic Scripting Edition (VBScript). For more information, see the VBScript page on the MSDN web site.

In addition to the available VBScript functions, there are also many objects, properties and methods used to interface with the host, utilizing the Open Host Interface Object (OHIO) interface.

All FlexTerm macros have the .ams file extension and are, by default, saved in the Macros sub-folder of the user's FlexTerm user directory.