The Oracle Universal Installer inventory stores information about all Oracle software products installed in all Oracle homes on a host, provided the product was installed using Oracle Universal Installer.
Inventory information is stored in Extensible Markup Language (XML) format. The XML format allows for easier diagnosis of problems and faster loading of data. Any secure information is not stored directly in the inventory. As a result, during removal of some products, you may be prompted to enter the required credentials for validation.[@more@]http://download.oracle.com/docs/cd/B19306_01/em.102/b16227/oui3_manage_oracle_homes.htm#sthref79
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