Use "Windows Process Activation Service" without IIS?

I have a vendor that is requesting the NET.Tcp listener adapter to be installed on SQL servers to allow their product to monitor them.  After installing that service, and all required dependencies, using Server Manager (in the .NET 4.7 section), it will not start because it has a dependency on the "Windows Process Activation Service" (WPAS) which itself will not start - it generates an invalid index error when I try to start WPAS.

I don't know anything about WPAS, this is the first I have encounter any mention of this service and I am not an IIS expert.  However, from what I can tell, WPAS seems to be related or used in conjunction with IIS, but it did not tell me that I needed IIS installed when I installed NET.Tcp listener.  So I don't know if my assumption is correct.  Could someone with IIS experience let me know if WPAS does indeed require IIS to start?  At least if I know that, then I can continue my troubleshooting the problem without having to be concerned with IIS missing from the equation.

Thanks

NK