cant install WC prophecy in windows 7

Schizodeluxe

Spaceman
Can anyone help me? I just downloaded Wing Commander Prophecy from GOG games and the install file will not load at all, keeps sayingprogram doesnt support my version of windows . I have windows 7 and I changed the setting to be compatible with windows 95, and even tried 98 and all the others but nothing worked. Half the time it just sits there and doesnt do anything. Any know whats going on here? Ive had no problems running the other WC games
 
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