Asset UPnP requires a UPnP endpoint, such as a Meridian 210 (or other similar third-party devices, such as Linn).

Asset UPnP will definitely NOT work with MS200 nor MS600

One alternative to Asset UPnP is, Audirivana. This has integral UPnP functionality: but you still require a UPnP end-point, such as a Meridian 210 for it to work.

Not an Actor, nor married to Jamie-Lee Curtis.

#1: DSP5200SE|DSW.2|218|210|506.2|504
#2: Prime/PSU|SOtM sMS-200 Mini NEO SE|Focal Stellia