August, 2013
Multicast website component is not installed on Https DPs
We recently logged a case with Microsoft as multicast wasn't working because the SMS_MCS_AltAuth IIS virtual directory was missing. The work around is to delete the condition in the msi (SMSbinx64mcs.msi)
MCSIsapiAltAuth.866DCF8D_BC89_48AE_9AE6_69F1BAAEF805 in the MSI:
(SMSSSLSTATE >< 1)
and then enable multicast.
This is due to the MSI evaluating whether the site is HTTPS instead of the component.
This has been fixed in R2.