Avoid using old dll's when installing a new version of the Paper SDK
Since updating the Paper SDK I run into issues printing or generating ps files, why?
Make sure that there isn’t any old version of papgen.dll in system32 folder since this could interfere with the new version. You should also make sure that the path to GAPATHOME is correct according to the new installation.
If you are using the .NET wrapper, the NPapgen.dll should be in the “working folder” along with the .exe file for the Paper SDK build while papgen.dll must be in a separate folder named “dll” in the “working folder”.
xerces-c_2_6.dll should also be put in the "working folder".
Paper SDK, C# .NET wrapper