INFOFILENAME

InstallShield 2016 » InstallScript Language Reference

When you use BatchFileSave to save a batch file or ConfigFileSave to save a Config.sys file, you can specify that InstallShield create a backup of the file as it existed before you updated it. InstallShield assigns the name of that backup file to the system variable INFOFILENAME. If you want to alert the user to the existence of the backup file, use the function MessageBox to display the value of INFOFILENAME.

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