Winamp Essentials Pack a plug-in pack compiled by Winamp staff and contributors: "this is not an official Nullsoft thing, but something we, Winamp developers do in our free time."

It contains plug-ins that either didn't make it into the official release or that developers and maybe you - the users - can't live without.

Winamp Essentials Pack 5.55 contains :

- FLAC Decoder
- FLAC Encoder
- Apple Lossless (alac) Decoder
- Waveform Wrapper
- Transcoder
- Lite-n Winamp Preferences
- ML Lite-n
- Skins in submenu
- Playlist Undo
- Find file on disk
- Predixis Removal tool

Changes in Winamp Essentials Pack 5.55 beta :

- New: [ml_enqplay] 'ML Enqueue and Play' plug-in for media library
- New: [in_wv] WavPack decoder, a free lossless codec
- New: [f263.wbm] As part of new 5.55 WBM system for lazy-loading of *.w5s files
- Updated: [alac.w5s] ALAC Decoder (now with ReplayGain support)
- Updated: [in_wav] Nullsoft Waveform Wrapper to v1.0.3 (adds localization support)
- Removed: ML Database Import/Export plugin (now bundled with Winamp 5.55)
- Misc: Various UI tweaks & translation updates

Changes in Winamp Essentials Pack 5.51 :

- New: [Installer] Finnish translation from Jusa1
- New: added translations for Time Restore & Autoplay plug-in
- Improved: [Installer] tweaked the script a little bit
- Updated: Nullsoft Waveform Wrapper to v1.0.1
- Updated Lite-n Winamp Preferences to v1.4
- Updated: [Installer] Polish, Spanish, Turkish, French, Russian and German translations to v1.07
- Updated: [Installer] to NSIS v2.33