# 4. PortableApps.com AppCompactor and AppCompactor.ini

The PortableApps.com AppCompactor is used to shrink software to better fit on smaller removable devices and run quicker over bandwidth-limited removable media. Normally, the AppCompactor is entirely automatic in settings and just needs to be run on the AppNamePortable directory of the portable app. Occasionally, some software is incompatible with the AppCompactor and its automated routines cannot detect the incompatibility. Additionally, sometimes additional files of a specific app should be compressed and the AppCompactor doesn’t normally handle them. In these cases, the AppCompactor.ini may be used.

The AppCompactor.ini resides in the AppInfo directory alongside the AppInfo.ini and Installer.ini. An example of the file follows:

    [PortableApps.comAppCompactor]
    FilesExcluded=msvcm90.dll|msvcp90.dll|mscvr90.dll
    AdditionalExtensionsExcluded=pyd|irc
    AdditionalExtensionsIncluded=example|beta

## Within the `[PortableApps.comAppCompactor]` section:

Note: If you do not plan on using the PortableApps.com AppCompactor to shrink your app or do not need to make changes to its standard compression setup, this section should be omitted.

FilesExcluded are any files you would like excluded from an AppCompactor run separated by pipes `|`.

AdditionalExtensionsExcluded is any additional types of files (extensions) that you would like to exclude from the compaction separated by pipes `|`.

AdditionalExtensionsIncluded is any additional types of files (extensions) that you would like to include in the compaction separated by pipes `|`.

CompressionFileSizeCutOff is the cutoff point at which to ignore files for compression in bytes. The default is 4096, meaning files 4K in size and smaller are ignored.