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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

For information on migrating to InterSystems IRIS, see Why Migrate to InterSystems IRIS?

About This Book

See the Table of Contents for a detailed listing of the subjects covered in this document.

The InterSystems Callout Gateway (implemented in the Caché $ZF functions) allows you to invoke external programs and system services from Caché. It also provides a way to integrate your custom code into Caché.

This book addresses the following topics:

For general information, see Using InterSystems Documentation.

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