I've installed Taskbar eliminator, while it works most of the time, alerts being the taskbar back.
I've also installed object dock which can disable the taskbar, object dock appears during window changes.
Has anyone had any luck permanently removing, hiding the taskbar in Windows 7?
Update
I found an application that seems to be working here:
Second update
I took the leap and installed a shell replacement (bblean). So far so good.
Best Answer
The only way to do this would be to completely and entirely stop using Windows Explorer, and use a custom shell to replace explorer completely. This means you would no longer have the usual start menu, explorer windows, etc, and would have to rely entirely on some other piece of software for browsing your file system. Some people do this, and there are replacements available, so if you really want to completely eliminate the windows taskbar, find and use one of these of your choice. There is already a SuperUser question discussing the various options.
In order to completely replace explorer, and have your replacement be the default shell which opens up when you log in, create a
REG_SZvalue calledShellin[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]using the registry editor. This will completely replace explorer for your account, making it unnecessary to use any taskbar hiding/killing techniques.