As written Vista does not support fullscreen mode. Each program/game which uses DOS can't be shown in fullscreen, not even the Command Line can't be.

As mentioned by zirkoni - you can try to use Dosbox. Here is a step-by-step tutorial on how to use it :)

two questions that bother me and i can't find answer for.

i know this game is also based on chance. however i find it strange - a few times i started with character i can't even get to level 2. there are just two halways form the room i started in and that's it. i wasn't archeologist or somethign with a pickaxe and such. my quesiton is is it possible that the game becomes completely impossible to finish in it's iteration?! in a way that you are doomed from the start? i mean i know it can be very very hard to finish. but impossible form start. that would be kind of stupid.

another quesiton i can't find the answer to is pets. i am aware of their usefullness, but what bothers me is that they keep going arorund instead of following you. they are just so easy to loose. and you spend a lot of time waiting for them and such. that's a bit silly... my quesiton is is there a trick with keeping them near you?

Yeah, I also got stuck in a level. Tried searching, found some hidden doors - but leading nowhere. Tried pickaxe, only to find that this rock is too hard for digging. Is it possible to dig a hole down to another level?

EDIT: OK, I found the reason, I need to go back (up) a bit...