Installation and Upgrade > Upgrading to the Latest Version of PTC FlexPLM > Upgrading Customizations and Pre-Upgrade Considerations > Customization Considerations > Custom.lcs.properties File
  
Custom.lcs.properties File
This file contains installation-specific information. You can move these property settings to a different file and save them to maintain machine-specific information. At the same time, you can allow the custom.lcs.properties file to remain generic by adding the following property setting to the custom.lcs.properties file:
com.lcs.wc.util.LCSProperties.additionalProperties=/lcs.plugins.properties,
/lcs.queryplugins.properties,/machineSpecific.properties
Create the new machine-specific property file, and enter the first two property settings in that file.