Licensing for existing XP VL customers





    I don't have our contract details at the moment, but I'd like to ask if anyone could help me determine the correct licensing path for a corporate environment.


    We have approximately 100 XP Professional licenses through VL. We'll be migrating to Vista Enterprise next year and I've been testing systems now. When I've activated the most recent test I get the MAK activation limit error.  The key I've been using was from the VLSC.


    I'm aware that there are a couple ways to license Vista; with a MAK key, and a KMS server. From this article:

    (( )) I've determined that we're not an Enterprise Agreement customer so we won't be needing an A,B,C,D license. I've also found this on the MS website ((


    Do we need upgrade licenses for our XP Professional machines? Are MAK/KMS keys upgrade indepenent?


    Thank you,

    Wednesday, December 10, 2008 2:46 AM


  • The best answer is for you to contact your Microsoft account representative or reseller.  If you plan to migrate from Windows XP to Windows Vista you will need to do so with a VL upgrade license.  You should look at the details of your agreement and discuss with your reseller or Microsoft sales representative to determine the best path.
    Windows Client IT Pro Audience Manager for Web Forums, Windows Client Forum Owner
    Friday, June 05, 2009 1:59 PM