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I have installed Exchange 2010 Standard Trial edition, into our Exchange 2003 environment. And now, for licensing, I've been provided a completely separate ISO download, volume-licensed for Exchange 2010 Enterprise. I would really rather enter a product key to my installed Exchange 2010, than have to go through an entire uninstall/reinstall process.

Is there some likely place on the volume-licensed Exchange 2010 DVD -- some specific XML file, perhaps -- where I might locate the slipstreamed product key? Or is there some option to that might add the slipstreamed product key to the existing installation?

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What does Microsoft say? – mdpc Feb 18 '13 at 22:00
up vote 2 down vote accepted

No, you don't need to reinstall Microsoft Exchange with the specific DVD...

On your Exchange 2010 server, try opening the Exchange Management Console...

Go to Server Configuration -> Enter Product Key.

Try the key. If it accepts, verify the version/edition by right-clicking on the General tab when selecting your server.

From Microsoft:

For new installations, you may use the software without entering a product key for 120 days after the initial installation only to demonstrate and internally evaluate it. You may upgrade the trial installation at any time to Exchange Server 2010 SP1 Standard or Enterprise edition by entering a product key.

After doing so, you'll need to restart the Microsoft Exchange Information Store service.

enter image description here

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I'd love to put the key in like this, but I don't know what it is. Our Microsoft reseller just provided the VL media, and says the key is embedded in the installer. – Lars Rohrbach Feb 18 '13 at 22:33
your reseller is wrong. press them harder. – longneck Feb 18 '13 at 22:36
I've never seen that. I always have to enter the key. Do you have access to the Microsoft Volume License Service Center? I believe there's only one setup key. When I buy Exchange Standard, all of my volume licenses use the same setup key... – ewwhite Feb 18 '13 at 22:36
I pressed my reseller further, including our campus contact in the conversation. Our local campus contact was able to provide me a usable product key, noting that it should be kept private and not redistributed. Thanks, everyone, for your feedback. – Lars Rohrbach Feb 20 '13 at 18:19
Keep in mind, that key is standard... Exchange 2010 seems to use the same keys everywhere... – ewwhite Feb 20 '13 at 18:25

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