Forge API Minecraft 1.6.1/1.6.2/1.6.3

There are mods out there that use the files with the same name or code but ModLoader Forge was built in ID assigned them different is that they can be recognized and installed properly so you keep away from compatibility issues.

Minecraft Forge API for 1.6.1/1.6.2 is a must have mod (the application layer) for most of the Minecraft player. Minecraft FORGE API is a custom tool, which prevents two or more mods to collision / conflict with each other so they can not crash your game.

The above download link (s) to help you get the latest version of Forge. It is updated periodically in recent Minecraft update.
[Tutorial] How to install Minecraft Forge API for Minecraft 1.6.1/1.6.2/1.5.2

Forge installation on a new copy of the game.
Download the latest version of the MCF from the link above.
Go to Start Menu> type% appdata% /. Minecraft / bin and press Enter
Open your Minecraft.jar with any storage explorer (for example WinRAR, WinZip)
Now open Minecraft Forge zip file and drag and drop its contents into the Minecaft.jar
You will need to run Minecraft once to complete its installation. Enjoy.

You can refer to the website much information to share:

Minecraft - Minecraft Mod – Minecraft Global

Description A custom tool to easily install mods for Minecraft:. Author: Minecraft Forge teams / LexManos File-size: 4.0 ~ Megabyte Release Date: July 2, 2013 Compatibility: Windows, Mac, Linux. Supported Version: Minecraft 1.6.1, 1.6, 1.6.3 and 0.2

Minecraft Forge API for Minecraft 1.6.1/1.6.2 Download:

For 1.6.1 - minecraftforge-install-latest.jar (installed) 

Download Minecraft Forge API for Minecraft 1.5.2 and below:

For Minecraft 1.5.2 - minecraftforge-universal-1.5.2-7.8.1.738.zip (official) 

For Minecraft 1.5.1 - minecraftforge-universal-1.5.1-7.7.2.682.zip (1.9 MB) 

For Minecraft 1.4.7 - minecraftforge-universal-1.4.7-6.6.2.534.zip (1.73 MB)