Mod Loader is an ASI plugin for Grand Theft Auto: San Andreas, which adds a very convenient and easy way to install modifications.
Its main feature is that the files of the original game are not affected in any way, and backups are no longer necessary.
Easy to use. You just have to create one or more folders inside the ModLoader folder and place the mods there. It is recommended to have one folder for each modification.
Changes in v0.2.4:
Support for replacing sound modification (AUDIO/STREAMS/) as well as TrakLkUp.dat and StrmPaks.dat;
Profiles added. This function allows you to have various modification settings and switch between them;
Some minor fixes.
You can see more details about the changes on the website.