A modular compiler is used to compile code for execution by an agent engine and a plurality of application programs. The modular compiler includes a class independent compiler which parses program code which is to be executed by the agent engine. The modular compiler also includes a class dependent parser for each application program. Each class dependent parser parses program code which is to be executed by its respective application program. When an application program is added to the computing system, an associated class dependent parser is added to the modular compiler. When an application program is removed from the computing system, the associated class dependent parser is removed from the modular compiler.
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