Glide.EXE

Glyde.EXE (グライド), known as Glide.EXE in the English anime and manga, is the personal NetNavi of Yai Ayanokoji.

Overview
Glyde is not considered a combat Navi and thus relies on the rare chips Yai has to provide to perform devastatingly powerful attacks. Glyde instead has a level seven security license allowing him to access networks that other Navis would not be able to. His demeanor towards Yai is akin to that of a butler. While he may come off as a bit "snooty" (taking after his operator), he is still good friends with MegaMan.EXE, Roll.EXE, and GutsMan.EXE, just as his operator Yai is good friends with MegaMan's operator Lan Hikari, Roll's operator Mayl Sakurai, and GutsMan's operator Dex Oyama.

Despite appearing in most of the games, he is never fought, nor does he even have actual battle sprites and Battle Chips (only using a single attack on a single Punk Navi before you fight Falzar/Gregar in Battle Network 6), though he is shown fighting in the anime.

MegaMan NT Warrior
Like in the games, he acts as a butler to Yai, and rarely battles; though, he is forced to fight NumberMan.EXE near the beginning of the series. He isn't a particularly strong Navi, but has many rare and powerful Battle Chips to assist him. Glyde also has a Glyde Cannon to use as a default Weapon.

Trivia

 * Glyde is the only character in the Battle Network series, named after a character from the Mega Man Legends series.