Microsoft Window Vista 64-bit comes with ready Khmer Unicode, and you should be able to view Khmer text website (such as or RFA - ) except that the Khmer text is very small. Set Up Khmer Unicode For Window Vista 64-bit: Go back to Page of Khmer Unicode for Window Vista 32-bit and Window XP
Fonts | Khmer Fonts | Cambodian Fonts | Khmer Unicode