During DPSPE 7.X install I receive a message stating, 'IIS must be enabled in order to install DPSPE'. But IIS is not installed.
The installer searches certain registry setting to look for iis and check what state it is in (Enabled/Disabled). When you receive an error message stating, 'iis must be enabled in order to install' it means that the installer found a setting in the registry that shows iis in a disabled state. In this situation it's likely that iis was previously installed on the machine and all of its registry settings were not removed when iis was uninstalled. To resolve the error please rename the following registry values: