If you dont have San Andreas
Mod Installer installed, install it!
a. (Install / Extract) "Install_Files.exe"
where ever you want.
b. open that folder.
c. Open "SnowSan1.sami" if you want to install
SnowSan version that have some bushes and oak trees
covered with snow (Full version).
Or open "SnowSan2.sami"
if you want to install (medium version) that doesnt have
some bushes and oak trees covered with snow.
Click "Browse" from "Mod Location"
and select "SnowSan1.sami" or "SnowSan2.sami" from that
folder where you extracted them.
Click "Browse" from "San Andreas Directory" and
select you san andreas folder
example. "C:\games\San Andreas\"
Start Game and play!
Remember to take backups!
(i know its ~ 900mb but
its your decision.)