# App Server CM Packaging Tools

The following utilities are provided in this package for maintaining the packaging environment and creating release versions of customer modifications (CM):

- `extractCMSource` utility, used to extract source from an app server or from a release or patch install package.
- `applyCM` utility, used to apply a CM patch to a packaging environment.
- `create_CM_Release` utility, used to create a full CM release version.
- `create_CM_Patch` utility, used to create CM patch release version utility.

Instructions for using these utilities are described in the following sections.

- Post Install Setup
- Using the extractCMSource.plx Utility
- Using the applyCM Utility
- Using the create_CM_Release Utility
- Using the create_CM_Patch Utility
- Multi-CM Application Functionality

Parent topic: Packaging Guide