AutoCAD Locator is a widget of the AutoCAD .NET Addin Widget group of AutoCAD .NET Addin Wizard (AcadNetAddinWizard). It can be found from the menu group of AutoCAD .NET Addin Widget under the Tools main menu or the toolbar:
After the AutoCAD Locator menu item or toolbar button is cliecked, the AutoCAD Locator window will pup up:
All installed AutoCAD versions and flavors are listed out in the Product combo box. When one is chosen, its detailed information, both for internal purposes such as Major Version, Minor Version and X64 bitness and for display purposes such as the well known yearly Version Name and the Language, will be displayed in the nice dialog. The most important of all, the location of the AutoCAD product is also shown at the bottom, and if the Locate button is pressed, a Windows Explorer will be opened up and navigated to the particular location of the AutoCAD of interest immediately and automatically so that some config files can be opened, checked and modified or something like that when necessary.
The leading edge AutoCAD .NET Addin Wizard (AcadNetAddinWizard) also provides some cool widgets to facilitate the development work using AutoCAD .NET API.