There is a slight problem with the instructions here. Whomever wrote the Service Tutorial 1 seems to have forgotten that if you have done everything so far, that you already have a DssHost running on port 5000, and they use the same port for this tutorial.
Also, the ServiceTutorial1.manifest.xml file is NOT created in the /config directory as the tutorial states. it is created in the samples/ServiceTutorial1 directory, so you have to copy it to the config directory before starting the service on port 50010 using the command shown in the tutorial.
So, after you build the project using VC#, copy the ServiceTutorial1.manifest.xml file to \config and THEN you can use the command shown to start the service on port 50010 (not port 50000 as shown).
I just used port 50010 instead of 50000 and got the new service started just fine.
Yes, I know it’s a bit confusing, but hopefully you will undersand my correction. If not, ask a question and I will clarify things further.
8-Dale