Need to retrieve Windows 7 OEM license numbers from Windows domain computers without manually walking to each station. Suggestions?

Need to retrieve Windows 7 OEM license numbers from Windows domain computers without manually walking to each station.  Suggestions?
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LB1234Asked:
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becraigCommented:
Here is a previously answered question that will get you where you need to be:

http://www.experts-exchange.com/Programming/Languages/Scripting/Powershell/Q_27785758.html
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Paul JacksonICT Officer - Networks and Infrastructure Commented:
You could try and install Spiceworks on your PC or on a server and let it scan the subnets your PCs are on. This will get the Product Keys for you and more.
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LB1234Author Commented:
Tried spiceworks but it lists the same license for every PC.
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LB1234Author Commented:
Becraig, I don't mind paying but $149 seems unreasonable.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
What is your purpose?

When you say license numbers, I assume you mean product keys.

A product Key is NOT a license.  It's simply a key.  Just because you have a key to the house doesn't mean you own it.  The deed does - the "deed" for software is your receipt in most cases.

If these are Dell systems, then the product keys might well be the same - at least for XP, Dell ALWAYS used the same keys... I don't know if they continued to the practice in Win7, but XP was always the same key from the factory even though the sticker on the machine said a different number.
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LB1234Author Commented:
Lee, you're right, i was vague/inaccurate.  I need the 25 digit Win7 or Win8 OEM License number.  These are affixed to the physical cases, but I need a way to retrieve them digitally.  These are not Dells, they're all HP.
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Paul JacksonICT Officer - Networks and Infrastructure Commented:
If all the keys are showing as the same then you have probably used a volume licence key on them all.
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LB1234Author Commented:
I haven't used a volume license key for these.  This is a known issue with Spiceworks.
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McKnifeCommented:
Use nirsoft's produkey, small, free, works within seconds, no installation, network-aware and capable.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
HP may have done the same thing.  Can you cite how you know Spiceworks has this as a known issue - because it's not known to me and I haven't heard of it having a problem with keys - problems with keys are usually because OEMs don't often use specific keys on PCs they ship - they give you a reinstall key (OEM key) but have a "master" key they use when building the system for your use.  At least that is my understanding.  If this is the case, your hunt for an electronic means may be futile.
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Paul JacksonICT Officer - Networks and Infrastructure Commented:
Spiceworks works fine for me too. Collects all the keys on all the PCs we have.
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☠ MASQ ☠Commented:
You cannot retrieve OEM CoA sticker details digitally from Dell, HP, Sony, Toshiba, Lenovo, Fujitsu or other so called "Royalty" PC manufacturers as they use an SLP key which is common to all their pre-activated systems. What Spiceworks is telling you is correct. The activation Key used by all the systems is identical - but it is not the same as the key printed on the CoA on the case. For audit purposes the presence of an OEM sticker is proof enough of licensing (provided you haven't reimaged them with a corporate install and retained the original OEM operating system).
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