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.
It's very easy to use. You should 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 v0.3.4:
Support for GTA III, Vice City and San Andreas
Support for Fastman92 Limit Adjuster 32 bit id limits.
You can see more details about the changes on the website by clicking on this link.