I know that two years ago I figured out how to do this in WMX 10.0, but with 10.2 I am running up against a few brick walls.
I have a couple of custom steps that my developer has recompiled against 10.2 on our of our servers. This server has both WMX and Visual Studio installed. He has supplied us with the .dll output. I then tried to register the .dll on my desktop PC.
I tried using c:\windows\SysWOW64\regsvr32.exe, but I am getting the error "The module CustomAddAttachment.dll" was loaded but the entry point DllRegisterServer was not found. Make sure that "CustomAddattachment.dll" is a valid DLL or OCX file and then try again."
I also tried using the ESRIRegAsm.exe but I was told that this is unlikely to work with Workflow Manager.
Ultimately I will have a number of users to deploy this .dll to. They will not have visual studio on their desktops.
Any suggestions? Could there be an issue with the compiled .dll?