MPPC compression implementations legal status?

[Alexander Motin]

Hi.

Can anybody explain me for sure current license status of Microsoft 
Point-to-Point Compression (MPPC) Protocol? It is not implemented in 
FreeBSD for years and I think it would be good to change this.

In RFC 2118 told that "Source and object licenses are available on a 
non-discriminatory basis from Stac Electronics". Does it means 
requirement to get license to use HIFN implementation of this protocol 
or also denies any other free implementation?

How does it coexist with Microsoft's "ROYALTY FREE PROTOCOL LICENSE 
AGREEMENT", http://msdn2.microsoft.com/en-us/library/ms818807.aspx. 
Doesn't this agreement allows free implementation of server side 
protocols for cooperation with Windows client systems?

-- 
Alexander Motin