Were you looking for with the installation, or did you need a deep dive into the mathematics of subdivision surfaces?

: You are looking for a "long paper" or technical documentation explaining how the TurboSmooth Pro algorithm works.

: If you are looking for a "setup key," it is important to note that this plugin is a commercial product. You should obtain a legitimate license through authorized developers or marketplaces like Mariusz Szerstobitow (the original creator) to ensure stability and compatibility with newer Max versions.

If you were actually looking for a research paper on subdivision surfaces (the technology behind TurboSmooth), you might be interested in the Catmull-Clark subdivision method, which is the industry standard for this type of modeling.

TurboSmooth Pro is a 3ds Max modifier that enhances the standard TurboSmooth. Unlike the default version, it allows for based on edge weights or smoothing groups, giving you more control over your geometry without adding extra edge loops [1, 2]. Compatibility & Installation

: Typically, the setup involves placing the .dlm plugin file into your 3ds Max Plugins folder.

Assuming you are looking for or a setup guide : About TurboSmooth Pro

However, the phrasing of your request is a bit ambiguous. It could mean one of two things: