I still remember the day when i heard rumors about "a french guy" working on an infinite stash plugin on the keeps irc channel, this was somewhere around 2003 or 2004. The guy turned out to be Yohann who is now well known and considered a pillar of our little d2 modding community.
Some time later plygy came out and bumped d2 modmaking to a whole new level.
PlugY, The Survival Kit 1.00 was the first version and it was described as the jaw-dropping PlugY by Alkalund in Keep Update 03/19/04. Now 10 years later Yohann announced the releace of Plugy source code. You can grab your copy here at Yohann site and please support him for all the years he has spent on this epic plugin!