Aqua-Soft Forumsi ve been looking for it at zillions of sites and also this forum - my Avedesk won't run properly without it - I cannot add new Desklets.
where can I find YzDocklet.dll ?
You wrongly added a YZDock docklet to AveDesk. AveDesk does not load YZDock docklets. Get rid of it.
In case of SysStats: Just get the ObjectDock version.
Download RKLauncher and you should find YzDocklet.dll in the zip - it is used to enable YzDock docklets to work with RKLauncher.
If you are indirectly asking for The-Dock-Which-Shall-Not-Be-Named, I would suggest you use google 