I know i could edit every .OSD file manually but doing this is pretty time consuming and erodes the advantage of using Advanced Installer over the Sequencer. We deploy our App-V packages using SCCM if that is any help?
Also in the sequencer I can specify the drive letter in the PACKAGEROOTFOLDER (e.g. Q:\) with Advanced Installer I can only Foldername. Is it is possible to add an option to specify the drive letter?