Set use.pack200=false in module’s project.properties if you want to completely disable using pack200 compression for the module. This can be used e.g. if you create module using 6.9 (and above) harness and need to have ability to install this module in older NetBeans versions (e.g. 6.8).

Set pack200.excludes=modules/somecodename.jar (supports standard Ant’s patterns) to exclude particular module jar files. This can be used to disable compression for some jars in case pack200 cause troubles for there jars after installation.