i'm having problems with myst v. i have done the ice place, and i want to go to the space place, but as soon as i press the button, it comes up with an error.

There's no Windows patch for EoA from Ubisoft, nor is there likely to be one.

What is the exact wording of the error message you get?

And don't forget to answer the questions in i want to go to d'ni!.

this the error that occurs when i play, how can i fix it?

See Myst V: Main Branch and Access Violation/Stack Error Fixes With Win XP, under Access Violation/Stack Error.