Dexterity is the application development tool for Microsoft Dynamics GP. In http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=8651 the documentation about the dexterity available to download. It is a free download.It is very useful to know about dexterity and guides are available to create application in dexterity tool. Here the help files and programming manuals are available. In this they explained a sample project and the functions, procedures, utilities and sanscript the scripting language used to give functionality for application. And guidelines for application development process in stand alone and integrating applications.