RegEdit Lanucher 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 RegEdit Launcher menu item or toolbar button is clicked, the AutoCAD RegEdit Launcher 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 registry key of the AutoCAD product is also shown at the bottom, and if the Launch button is pressed, a Windows Registry Editor will be opened up and navigated to the particular AutoCAD registry key of interest right away automatically.
The leading edge AutoCAD .NET Addin Wizard (AcadNetAddinWizard) provides some more cool widgets to facilitate the development work using AutoCAD .NET API.