If have a windows installer package in an RTL language, like Arabic or Hebrew, and you want your dialogs to show right to left, you need to set the following properties to ensure that all dialogs and text show properly from right to left:

• Set the ProductLangae property to your RTL language.
• Set the CodePage to the codepage of the RTL language (ie. 1256)
• Set the language field in the Summary Info field to the RTL language (ie. 1256)