I wrote a VB (i.e. Set-install.exe) with a progressbar. In the registry I set 4 values: executable to run, name of the application, folder and size of installation. 1. display window with progress bar when regkey is set, so start with a script, start your setupprogressprg with command line : set-install.exe /title: Quicktime (which start the progressbar run the executable) 2. see what folder the apps is installed to: i.e. %programfilesdir%\QT,set it to registry 3. the ammount of MB you expect, i.e. 15MB set it to registry a) In your VB you look every second if your regkey with the appname is still there, if not close is B) in your VB you look at the folder size and calculate Progressbar=100-(expected Foldersize-currentFolderSize) At the end you only have to delete the regkey with the appname and its set! I can write it for you, price per mail