Sorry Phill, i was a little bit misleaded by that answer from Harbinder Singh in Stackoverflow:
http://stackoverflow.com/questions/24439602/wix-burn-install-iis-if-not-yet-installed/24491306#24491306 Now i found it out. The ExeCommand of my CustomAction must look like that: <CustomAction Id="InstallIISCA" Return="check" Property="INSTALLIISPROP" Execute="deferred" HideTarget="no" Impersonate="no" ExeCommand="/Online /Enable-Feature /featurename:IIS-WebServerRole /featurename:IIS-WebServer /featurename:IIS-CommonHttpFeatures /featurename:IIS-StaticContent"></CustomAction> One question left: When i make different MSI packages for the different OS- and OS-Bit-versions is it possible to create a MSI package which install no files and just executes the CustomAction? Thanks in advance! -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/How-to-use-dism-exe-in-WiX-ExePackage-for-IIS-feature-activation-tp7598913p7598928.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users