How do I publish a Windows Service in Workflow 7.5.2100.1035?

Dear Symantec,

I have a Windows Service Workflow that I want to publish so that I can install it on a server. I used to be able to go to:

File->Publish Project->Create Publishing Installer

and it would then go through the process of creating an installer for my Windows Service Workflow. I would then use the installer to install the Windows Service quite nicely! This worked even in the Workflow Manager that came with Service Desk 7.5 MR1.

However... I have now upgraded my development server to Workflow 7.5.2100.1035 (the Workflow 7.5 that comes with SMP 7.5) and now it gives the following message when I do the above:

So, if I cannot create an installer, does anyone know how to install it as a Windows Service now?

Kindest regards,

QuietLeni