Hi, We're having an issue while opening a dwg file using the latest version of WW.dll (4.0.38.105) Here is the stack trace of the error: at .() at .() at .() at .(ProgressEventHandler ) at WW.Cad.IO.DwgReader.Read(DxfModel model) at WW.Cad.IO.DwgReader.Read() at WW.Cad.IO.DwgReader.Read(String filename, ProgressEventHandler progressEventHandler) at WW.Examples.OpenGLViewExample..ctor(String filename) in C:\\Users\\[USERNAME]\\Documents\\CadLib 4.0\\Examples\\OpenGLViewExampleCS\\OpenGLViewExample.cs:line 42 I will send you the file via Hightail later. Thank you for your assistance.

Hi, The problem has been fixed, please download the latest CadLib 4.0 version. Thank you for the report! - Wout

Thanks. Have a good day! Stéphane