Icon change and so on

Hello, i have a few problem
-Does any1 know how i can change the icon of an .exe (from Blender)?
-And how i can hide the mouse in an running game?
-I am making an game and i need the high score to be saved when i quit the game and restart it again it must be loaded.Does any1 have any solution for that problem?!
-I have an field of 8*12 in each field is should be an cube.
How can i make an random field (so that i can add my objects from another scene)

By the way, whats the difference between “save dynamic runtime” and save runtime?

I know my english is not very good but i´ve tried my best
thx for all answers!!!

import Rasterizer 
Rasterizer.showMouse(0)

This disables mouse… just connect the camera with always ---- python:mouse.py

For icons search the forums, somewhere there is a program to do that…

Dynamic runtime is when u use python script and just runtime is without
python script… u need some *.dll-s when u use dynamic runtime

for that save and load thingie is some script from saluk that he made in some
of his old game… I don’t remember what it was(search it from the forum)

Non-dynamic runtimes can use python scripts too, they just can’t import external modules.

For the high scores, look at the beginners tutorials on python.org. Reading and writing to a text file is actually very easy.

icon replacer:
http://www.8ung.at/s_w/

something for saving and loading high score:
http://www.zerooneentertainment.org/blengine/blends/savescore.blend