<Applications Manager Home> refers to the directory in which you have installed the Applications Manager product. This directory location is specified by you when you install the product.
For example, let us assume that you have installed Applications Manager under the default <Program Files> directory of C: drive in your system. In this case, <Applications Manager Home> denotes C:/Program Files/ManageEngine/AppManagerxx. In Linux, if Applications Manager is installed under home directory, then
<Applications Manager Home> denotes ~/ManageEngine/AppManager_Home