Hello fellow simmers

I am having an issue! A disclaimer: I've looked everywhere online and I can't seem to find this particular issue but if it has been resolved and i'm overlooking it, please forgive me.
i have the clean installer program so i never have to install items manually, and for every SIM i download with it it works beautifully. However, when i try to install anything like makeup, hair, or mods i always get an icon that resembles a blank piece of paper and when i click on it it says: " windows cannot open this file...what do you want to do?" I click the " use the web to find the correct program" and no matter what windows can never find it

Please help me!..im using Vista, could that be the problem?