Read the title, that's my question

I've read nokia's docu about that, and they don't say anything about it

But I have 45options in my sis, and people only need 2 or of them (but I don't know which one)

So I want options in the sis installer to be set to 0 by default, not 1, otherwise people will have to disable 42 options out of 45 during installation....

Is there any way to do it? Please answer asap, it's pretty urgent

Thanks in advance