I'm using Inno Setup to create setup file for my application. Inno Setup is based on Delphi Script. I searched for Inno Setup forums and I could not create an user account with any of them. That's why I've decided to post here. While installing I've to check the version of Windows Service Pack installed in a particular system. If it's 2 or below, I've to download vcredist_x86.exe from internet and install it. Before Downloading I need to get the user permission by providing a MessageBox to the user. If the user response is OK, I've to continue downloading and installing. If the user selects Cancel,I need to display a MessageBox stating "Could not continue installation", stop the installation and Quit. How to do this? Can anybody provide some sample code? Please excuse me,if this is a silly question because I've not used Delphi before. Sorry,I've posted this thread in the Introduction thread. Can anybody delete that thread for me?