WixUI element (Ui extension)
References a WixUI dialog set, either one that's included in WixToolset.UI.wixext or a custom dialog set included in your authoring.
Parents
Fragment, Module, Package, PatchFamily, UI
Attributes
Id (String, required) : Identifier for the dialog set to reference.
InstallDirectory (String) : An optional identifier that specifies the directory to set WIXUI_INSTALLDIR to, for WixUI dialog sets that require it.