+1  A: 

If you take a closer look at the ConfigureIIs custom action in the InstallExecuteSequence using Orca, you'll see its execution depends on the property called SKIPCONFIGUREIIS. It is "all-or-nothing" switch, and if you set this property for those cases when your IIS-related feature is off, the installation won't try to address IIS services.

Hope this helps.

Yan Sklyarenko  2010-10-27 06:45:35
thanks a lot there! now I just have to turn it off if IIS is not installed.
jerbersoft  2010-10-27 07:14:26

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