1. 启动Eclipse/MyEclipse后, 打开"Window -> Preferences-> General -> Workspace",点Workspace页上的"Startup and Shutdown", 然后勾选"Startup andShutdown"页中的"Prompt for workspace on startup";
2.用记事本打开"\eclipse\configuration\.settings\org.eclipse.ui.ide.prefs",将"SHOW_WORKSPACE_SELECTION_DIALOG"的值改为"true";
P.S.:
3.删掉"\eclipse\configuration\.settings\org.eclipse.ui.ide.prefs".
执行上述操作后, 再次启动, 又会弹出"Workspace Launcher"对话框了.