Hyper-V Server License + usage

hi all,

one question licensing. sounds simple, it's difficult.

the environment: install hyper-v server 2008 r2 on bare metal, means i'm talking single license on vm host.
forget clients, it's host software. , no additional windows server license affected.

is "free use" license or "free download" license?
i'm sceptical term "free download". know "adobe photoshop free download" - means download free, use product have buy license (that's ok, , clear-cut).

i'm looking written statement microsoft. have found source this?
after 3 days of search i've found nothing exact written definition producer.

it's frustrating of microsoft staff (and our microsoft vendors) confuses „microsoft hyper-v server 2008 r2“ , „microsoft windows server 2008 r2 hyper-v“.
noone there knows product named hyper-v server 2008 r2. of them have no clue how license correct ...

maybe 1 of can help.

thanks
frank

microsoft says it's free , has been saying free since 2008, there plenty of msft employee blogs saying this.  mike's example above.  if need in writing print out quote jeff woolsey (principal program manager windows server , cloud) on mike's link:

"how microsoft hyper-v server 2008 r2 sp1 cost? can it?

microsoft hyper-v server 2008 r2 sp1 free , hope enjoy it! here’s download link: microsoft hyper-v server 2008 r2 sp1.

jeff woolsey

windows server & cloud"

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or post jeff: http://blogs.technet.com/b/virtualization/archive/2009/07/30/microsoft-hyper-v-server-2008-r2-rtm-more.aspx

"in short, microsoft hyper-v server 2008 r2 addresses top customer asks: live migration, high availability, major scalability improvements and more while keeping free."

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another post msft employee: http://blogs.technet.com/b/tonyso/archive/2008/09/10/free-microsoft-hyper-v-server-2008.aspx

"coming next month, virtualization server (sometimes called host) can download free (as in beer). "

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http://blogs.technet.com/b/danstolts/archive/2008/10/07/free-download-hyper-v-server-2008.aspx

"microsoft hyper-v server 2008 stand-alone product available via microsoft download center free of charge. microsoft hyper-v server 2008 not require cals product itself."

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hyper-v server not evaluation or trial product , not "expire" after period of use, stand-alone product

"microsoft hyper-v server 2008 r2 stand-alone product available free download via microsoft download center.

hyper-v technology built windows server 2008 r2. if own windows server 2008 r2 own hyper-v. find out more information on how buy windows server 2008 r2."

 if need higher level of evidence provided, should directly msft licensing source.

Windows Server  >  Hyper-V