The portable app does not require installation. Make as many copies as you need. Carry it in a flash drive and use on any computer, even without administrator access. No change of any setting on the host computer. No more conflicts with other applications. No more 'hijacking' of file types. All dependencies are included. Please note that this is a cracked and portabled version of the Swarshala Demo 3.0.7. This version includes only 3 instruments, viz., Tabla, Harmonium and Tanpura.