File list (Check if you may need any files):
TANGRAM
.......\CANVAS.DLL
.......\CANVAS_C.TLB
.......\GDIWRLD.DLL
.......\GLU32.DLL
.......\GLWRLD.DLL
.......\GLWRLD_C.TLB
.......\MODEL.DLL
.......\MODEL.EXE
.......\MODEL_C.TLB
.......\OPENGL32.DLL
.......\PROXY.DLL
.......\README.TXT
.......\REGISTER.BAT
.......\SOURCE
.......\......\CANVAS
.......\......\......\CANVAS.CPP
.......\......\......\CANVAS.DEF
.......\......\......\CANVAS.DSP
.......\......\......\CANVAS.H
.......\......\......\CANVAS_C.TLB
.......\......\......\SERVER.CPP
.......\......\COMMON
.......\......\......\CFACTORY.CPP
.......\......\......\CFACTORY.H
.......\......\......\CUNKNOWN.CPP
.......\......\......\CUNKNOWN.H
.......\......\......\EVENTSINK.CPP
.......\......\......\EVENTSINK.H
.......\......\......\REGISTRY.CPP
.......\......\......\REGISTRY.H
.......\......\......\UTIL.CPP
.......\......\......\UTIL.H
.......\......\GDIWRLD
.......\......\.......\GDIVISL.CPP
.......\......\.......\GDIVISL.H
.......\......\.......\GDIWORLD.CPP
.......\......\.......\GDIWORLD.DEF
.......\......\.......\GDIWORLD.H
.......\......\.......\GDIWRLD.DSP
.......\......\.......\SERVER.CPP
.......\......\GLWRLD
.......\......\......\CGL-PAL.CPP
.......\......\......\CGL.CPP
.......\......\......\CGL.H
.......\......\......\GLVISL.CPP
.......\......\......\GLVISL.H
.......\......\......\GLWORLD.CPP
.......\......\......\GLWORLD.DEF
.......\......\......\GLWORLD.H
.......\......\......\GLWRLD.DSP
.......\......\......\SERVER.CPP
.......\......\IDL
.......\......\...\CANVAS_C.IDL
.......\......\...\CANVAS_I.IDL
.......\......\...\EVENT_I.IDL
.......\......\...\GLVISL_I.IDL
.......\......\...\GLWRLD_C.IDL
.......\......\...\GLWRLD_I.IDL
.......\......\...\MODEL_C.IDL
.......\......\...\MODEL_I.IDL
.......\......\...\TANTYPE.IDL
.......\......\...\VISUAL_I.IDL
.......\......\...\WORLD_C.IDL
.......\......\...\WORLD_I.IDL
.......\......\MODEL
.......\......\.....\CNTPOINT.CPP
.......\......\.....\CNTPOINT.H
.......\......\.....\CONDATA.CPP
.......\......\.....\CONDATA.H
.......\......\.....\ENUMCON.CPP
.......\......\.....\ENUMCON.H
.......\......\.....\ENUMCP.CPP
.......\......\.....\ENUMCP.H
.......\......\.....\ICON1.ICO
.......\......\.....\MODEL.CPP
.......\......\.....\MODEL.DEF
.......\......\.....\MODEL.DSP
.......\......\.....\MODEL.DSW
.......\......\.....\MODEL.H
.......\......\.....\OUTPROC.CPP
.......\......\.....\PROXY
.......\......\.....\PROXY.DEF
.......\......\.....\PROXY.DLL
.......\......\.....\PROXY.MAK
.......\......\.....\RESOURCE.H
.......\......\.....\SERVER.CPP
.......\......\.....\SERVER.RC
.......\......\SHARE
.......\......\.....\GLWRLD_C.TLB
.......\......\.....\MODEL_C.TLB
.......\......\.....\WORLDCAT.H
.......\......\.....\WORLD_C.TLB
.......\......\TANGRAM
.......\......\.......\CONFIGDLG.CPP
.......\......\.......\CONFIGDLG.H
.......\......\.......\MAINFRM.CPP
.......\......\.......\MAINFRM.H
.......\......\.......\RES
.......\......\.......\...\TANGRAM.ICO