The crash fix applies to Windows XP and having something like periods (dots) in your user folder name in 'Documents and Settings'.
They want you to point to the location of the 'Documents and Settings' folder on your machine, usually it's 'C:\Documents and Settings' if XP is installed on drive C: so you just put in the location of your 'Documents and Settings' folder on your machine, but only if using XP!
EG.
"Gtasasav"="C:\\Documents and Settings\\Gtasasav"
would point to drive C: being the location of the folder.
But if you have intalled XP on drive D: then it would be:
"Gtasasav"="
D:\\Documents and Settings\\Gtasasav"
Note that you have to put 2 backslashes
\\ in the reg file instead of 1 when entering path names.
I also think you may need a folder creating in your 'Documents and Settings' folder called
Gtasasav.
Personally, my GTA:SA saves are located in 'My Documents' folder and not 'Documents and Settings'.
I've also completed the main mission of the game, now I can cheat as much as I want