iSCSI server: Assume this is the core StarWind server itself?
Loopback accelerator driver: haven't a clue!
Management console: yup - understand that one
VSAN deployment tool: pass
NAS configuration tool: know what a NAS is but what does it help you configure?
V2V convertor tool: guess this is for converting something to something else? Give us a clue what

PowerShell management library: I *love* PowerShell - ditto documentation
SMS-S agent: the service that allows other software to interface with StarWind, e.g. VMM?
Software VSS provider: I know what VSS is but what is StarWind doing there? What's this actually do?
Hardware VSS provider: ditto
Cheers, Rob.