The Custom Files tab is used to specify the location of any files required by your custom scripts. Files specified here will be added to the published package and will be written to the working directory of the target machines when the patch is installed.
To add a required file, specify the full path to the file and then click Add. You can also click Browse to locate the file.
Each file you specify must be located in a folder or share that is accessible to the account that is used to publish the update.