uninstalling problem
When i try to uninstall shell on fast PCs(i have no problem with this on my Duron 750 but have on P4 1800) shell unregistration and quit command can't finish before it will be deleted. Shell still work and as result uncomplete uninstallation. All unused files removes fine.

How can i fix it? Does NSIS support !Pause command or something like this or maybe don't delete shell untill it close by Window class or ...