GENERATING A LOCAL COPY OF A VIRTUALIZED APPLICATION PACKAGE FROM A LOCAL INSTALLATION

Technologies are described herein for generating a local copy of a virtualized application package from a local installation. An empty copy of the virtualized application package is generated from a skeleton file. The skeleton file contains a hash value computed from each data block in the virtualized application package. The component files of the application are retrieved from a virtual file system representation of the location installation of the application, and each component file is divided into one or more blocks of data. A hash value is computed for each block of data and the skeleton file is searched for a hash value corresponding to a data block of the virtualized application file that matches the hash value computed for each block of data. If a match is found, the block of data is copied to the corresponding data block of the empty copy of the virtualized application package.