Windows Me build 2419

Windows Me build 2419 is the official Beta 2 release of Windows Me. This build includes new Control Panel applets, Internet Explorer 5.5, Windows Media Player 6.4, and MSN Internet Messaging.

Windows Explorer crash bug

 * Windows Explorer can be prone to crashing in this build, making this build quite difficult to use in some cases.

S3 drivers

 * Upon using S3 video adapters, Windows will complain that its own drivers will not work properly, thus the display will be stuck at . This error will also appear upon every boot and other drivers cannot be installed correctly, meaning that S3 video adapters are not recommendable for this build.

Neptune reference
Two files, namely  and , with the version number 5.50.5099.1 were found in this Millennium build, but it is unknown whether this Neptune build ever existed.

Some speculate this could be a late Milestone 1 or an early Milestone 2 build. Judging by the file dates, it would have been compiled before 17 November 1999.