Hi Guys, This should be something simple or not possible at all, I have a ‘.pvk’ file and I want to generate a corresponding .spc file, I have followed the instructions on http://msdn2.microsoft.com/en-us/library/9sh96ycy.aspx but failed to generate an adequate cet/spc file, following are the steps I follow. 1.I have received a valid .pvk from some formal issuer 2.I have used makecert –sk <%mycert.PVK%> <%resulting new .CER file name%> 3.cer2spc <%.CER file name%> <%resulting .SPC file name%> 4.Failed to use SIGNCODE.EXE to sign a .cab file with the received PVK file and the generated SPC file, signcode.exe prompts the certificate is invalid while writing the password. 5.Browsing the .CER file generated by makesert.exe I can see that this is a ‘demo’ certificate ( it expire on 2040 and it doesn’t include out authority ) How can I generate a valid SPC file ? Is it possible to generate SPC files from a PVK file ? Any help would be appreciated. -- Nadav http://www.sophin.com