VST Plugins usually come in the form of a dynamic link library (.DLL) file, containing a program that can be run inside FL Studio to perform the desired function. Installing plugins, instruments and FX, is usually a very simple process including

Installing VST Instruments & Effects :

1. Browse to your Windows installation drive: ..Program FilesVstplugins.

2. Paste the .dll files to the directory.

Installing VST Instruments & Effects in FL Studio:

Click: 1. Channels > 2. More > 3. Refresh (button at the bottom of the list) > 4 . Fast scan. The plugin you have installed should appear in the plugin list in red. If this does not happen, please make sure you have followed the previous steps properly.