CS_DWG.DLL Plugin for AutoCAD (TM) DWG viewing 4.41
CS_DXF.DLL Plugin for AutoCAD (TM) DXF viewing 4.41
CS_HPGL.DLL Plugin for HPGL/2 Image  viewing 4.41

http://www.cadsofttools.com/Download/AllPlugins.zip

CS_DWG.DLL, CS_DXF.DLL Plugins provide support for DWG and DXF AutoCAD file formats in IrfanView, XNView and ABC-View Manager. 

Features: 
Change drawing size using CADSoftTools Plugin Manager 
The World's fastest DXF / DWG reader 
DWG v. 12, 13, 14, 2000, 2002, 2004 / 2005 (new!)  
High quality 
3D graphic supported 
CS_DWG.DLL Plugin loads preview picture from DWG file

CS_HPGL.DLL Plugin. Supported HPGL and HPGL2 Hewlett-Packard formats, extensions: *.HGL, *.PLT, *.HG, *.HPG, *.PLO.  

CADSoftTools Plugin Manager allows fiting drawing size for CS_DXF.DLL, CS_DWG.DLL, CS_HPGL.DLL and CAD Image DLL. This is an application with simple user interface.