POPFile Portable is an automatic mail classification tool that runs directly from your USB thumbdrive, portable hard drive or any other portable media. You can plug it right into any Windows computer and use it just like you would on your own computer. It is a repackaged version of POPFile designed with portability in mind, so it has the same great features as POPFile, but there's nothing to install.

The installer will install all available POPFile options, including support for SSL connections (as required for POP3 and IMAP access to Gmail). It also offers an option which will install the internal and Kakasi parsers used to help analyse Japanese (Nihongo) messages. POPFile Portable requires about 12 MB of storage space (18 MB if the Nihongo option is selected).

A separate installer is available which adds the MeCab parser to an existing POPFile Portable installation. MeCab is a more accurate parser for Japanese messages, partly because it uses a much larger dictionary than Kakasi. The MeCab installer is almost twice the size of the POPFile Portable installer and adds about 50 MB to an existing POPFile Portable installation.

Installation options supported:

• Default (includes all skins, all UI languages, NNTP, SMTP, XMLRPC, IMAP, SOCKS, SSL support) - the default setting used by the POPFilePortable installer

• Default + internal parser + Kakasi parser for Nihongo - select the Nihongo option in the POPFilePortable installer

• Default + internal parser + MeCab parser for Nihongo - use the default setting in the POPFilePortable installer then run the MeCab parser installer

• Default + internal parser + Kakasi parser + MeCab parser for Nihongo - select the Nihongo option in the POPFilePortable installer and then run the MeCab parser installer

The installer will automatically add POPFile Portable (which runs the portable version of POPFile) and POPFile Portable Maintenance (an easy way to run several of the POPFile utilities) to the PortableApps.com platform's menu.

If the POPFile Portable installer is unable to find the PortableApps.com platform on any connected device you can install POPFile Portable almost anywhere, e.g. X:\demo\POPFilePortable. Once the installer has finished you will find three files in the X:\demo\POPFilePortable folder:

These two program files ensure that the correct environment has been set up before calling the standard POPFile programs found in the POPFilePortable\App\POPFile subfolder. If you try to run any of the programs in this POPFilePortable\App\POPFile subfolder things will go wrong!