AcadPVI Shell Extension (AutoCAD Preview-Version-Information) is an add-on for Windows Explorer that integrates an AutoCAD thumbnail preview and version information into the context menu. Just right-click on any AutoCAD file (.dwg, .dwt, .bak, etc.) to see the preview, no need to open the file.

Features:
1. Display preview images (v13, 14, 2000/2000i/2002, 2004/2005/2006 & 2007)
2. Display version (v2.5, 2.6, 9, 10, 11/12, 13, 14, 2000/2000i/2002, 2004/2005/2006 & 2007)
3. Display preview and version information for all AutoCAD files (.dwg, .dwt, .bak, sv$, etc)
4. Small, fast and self-contained. AcadPVI.dll is the only required file.
5. It's Freeware

The license of this software is Freeware, you can free download and free use this cad software.