.net EXEs not compatible

I am using Visual Paradigm 5.2 to reverse engineer a c# exe, but i get an exe/dll not .net compatible error. I haven’t seen an option to reverse engineer .cs files, which i also have for the program. I am using Visual Studio Express 2005. Is there any solution?
Thanks!

Hi user,

Would you mind sending me the C# exe to have a look? If you mind posting here, you can send to my personal email address - jick@visual-paradigm.com

Best Regards,
Jick