PortableApps.com AppCompactor 1.1 has been released. It allows you to easily compress applications to decrease size on disk and increase performance when running from slow media like flash drives without affecting functionality.
Though intended for developers, some advanced end users may also find it useful. This new version updates the included 7-Zip compressor, automatically skips small files (under 4k) and has improved Windows 7 support. It's packaged as a portable app, so you can shrink your apps on the go. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Suite. And it's open source and completely free.
FeaturesAppCompactor ScreenshotPortableApps.com AppCompactor allows you to easily compress application to decrease size on disk and increase performance when running from a slow media (like flash drives). It features:
* Proven UPX binary compressor
* 7-Zip compression of archives
* Multiple compression levels
* Automatic testing of compressed files
* Automatic skipping of <4k files
* Compression of DLL, EXE, ZIP, JAR, IRC, PYD and BINs in all directories
* Automatically skip launcher if selecting PortableApps.com Format apps' base directory
* Saving up to 50% or more installed space of many apps
* Faster application starts from flash drives
* The same technology we use in OpenOffice.org Portable, Pidgin Portable, GIMP Portable and more!
Helpful tips: * Don't compress NSIS launchers (FirefoxPortable.exe, etc), they'll break
* It's best to have the app you're compressing reside on a hard drive (at least temporarily) rather than a flash drive to improve performance and decrease writes to your flash drive
* You can disable the Welcome screen or have the console window stay by editing the settings.ini in the Data directory
* Only NRV2E should be used for PortableApps.com Releases (including development tests and pre-releases) unless it's a small app (one exe and a dll or two) and very easy for you to test every feature and function on every Windows OS.
* Always back up your files before using this tool as it will not work with all applications.
http://portableapps.com/apps/utilities/appcompactor