If you have a version previous to 2.4.0 installed, please delete the PolyUnwrapper folder from your "3ds Max/Plugins/" before running the installer.
If you have an Antivirus Software and you experience any trouble while installing PolyUnwrapper, please disable your Antivirus or Whitelist PolyUnwrapper.
PolyUnwrapper does not contain any Virus, Spyware, Adware or any other malicious code.
Drag and Drop the PolyUnwrapper .mzp installer onto your 3ds Max viewport or run it via Menu|MAXScript|Run Script... and click Install.
Once installed, go to the 3ds Max Utilities tab. In the MAXScript utility there will be a new script "PolyUnwrapper". From there you can load and unload PolyUnwrapper as you need.
Once loaded, the PolyUnwrapper toolbar will automatically open every time you open the Unwrap UVW Editor, and will temporarylly replace the standard Unwrap UVW Toolbar in Max 2010 and 2011.
The plugin does not overwrite any 3ds Max setting, nor does it save any information with your scene, so you can use it and then open the same scene in another machine where PolyUnwrapper is not installed.
You can also load PolyUnwrapper, use some of its functions, and then unload it and keep using the standard Unwrap UVW Toolbar.
You can assign "Hotkeys" to many of the PolyUnwrapper functions. These "Hotkeys" will run only when PolyUnwrapper toolbar is opened.
To access them go to Customize->Customize User Interface... in 3ds Max menu bar, and under "Category" select PolyUnwrapper as shown in the image bellow.
To uninstall PolyUnwrapper, simply Drag and Drop the PolyUnwrapper .mzp installer onto your 3ds Max viewport or run it via Menu|MAXScript|Run Script... and click Uninstall.