I am using AUTOIT to start an install of a .msi file using the command 'ShellExecuteWAIT("Photorepappsetup.msi").... The install starts by giving a window with the title 'Open File - Security Warning'--- I think this window is comming from Windoes xp and not the .msi file. I cannot get the script to respond to this window.... Does anyone have an advice????? Thanks.....