Super DeepThroat (SDT) is an older Flash-based game. Mod Loader 9 (also called "Loader v09" or "SDT Mod Loader") is the standard framework that allows you to use community-created mods (clothing, characters, dialogue, etc.).
For the loader to work, the folder structure must be precise. You should see something similar to this: superdeepthroat v1666f mod loader 9 install
: This usually means a mod is incompatible with version 1666f. Remove all mods from the mods folder and add them back one by one to find the culprit. Note: Super DeepThroat (SDT) is an older Flash-based game
Which of these do you want?