In some situations you may not be able to install or update software using the menu commands in the Help menu. In these situations you will automatically be redirected to the classic update manager. You can also access the classic update manager from the General > Capabilitiespreference page by enabling the Classic Update capability. When this capability is enabled, aSoftware Updates... sub-menu will appear in the Help menu, providing access to classic update commands.
翻译：
myeclipse 中没有update software：
myeclipse下面的General 下capabilities 选中
classic
update manager。
myeclipse 中 没有update software 解决方案
原文：http://blog.csdn.net/u010236550/article/details/44236799
