ictaklas, how are you planning to deploy this msi? I had a similar application that was going to run from the network drive. Once i did my initial msi, i had to open it in Developer and change the drive letter with a variable that you can create. For example, my application had to point to F:\networkdrive\app.exe. So i created a variable name dr_path , where value is equal to F:\ . Then i went to properties of my shortcut and changed it to dr_path\networkdrive\app.exe . If you do not do this, everytime you try to instal this app and drive F: is not present...installation will fail.