Dear all, i have to run my setup.exe file conditionally in a .cab file. that setup.exe installed myproduct.exe. I prepare my setup.exe by using installshield. How can i check in INF file, either my product is already installed , howevere first time it installed silently and work file, but second time when i try again to open web page. it again try to install setup.exe, as that setup already install, so my web page hang due to this installation. Now i need to apply a condition in INF file first to chech whether myproduct.exe installed or not, if it is already installed then i want to skip installation, How can i manage that, that kindly help. i will be very thankfull to you all.