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108. Extension Modules

Extension modules do not process log messages directly, and for this reason their instances cannot be part of a route. These modules enhance the features of NXLog in various ways, such as exporting new functions and procedures or registering additional I/O reader and writer functions (to be used with modules supporting the InputType and OutputType directives). There are many ways to hook an extension module into the NXLog engine, as the following modules illustrate.