저희 집에서는 에러 안나는 Open Office만 쓰기 때문에 모르겠지만, 사무실 같은 데서는 MS 2007을 쓰기 때문에 집에서도 써야 된다는 분들이 제법 계신대요.

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아래는 원본

To use this hack to crack activation on Office 2007, you need to install Office 2007 without any serial number or product key.

If you have installed Office 2007 with a product key or serial number, do the following to clean remove Office 2007 of product key:

Close all Microsoft Office applications.
Run Register Editor by clicking on Start -> Run, and then type “regedit” in the Open box and press Enter key.
Navigate to the following registry key:
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration

Note that inside the registry key, there should be another subkey that resembles the following:

HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration{90120000-0030-0000-0000-0000000FF1CE
or
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration{91120000-0011-0000-0000-0000000FF1CE

If there is more than one registry entries or subkeys that reference Microsoft 12.0 registration, open up each subkey,
and then identify the product by the ProductName value data until you locate the subkey for the product which you want
to remove the existing product license key.
For example:

ProductName=Microsoft Office Professional Plus 2007
ProductName=Microsoft Office Enterprise 2007

Once found the correct registry subkey, delete the following values:
DigitalProductID
ProductID

Close Registry Editor.
Once Microsoft Office 2007 has been installed with no product key, proceed with the following steps:

In Windows Explorer, brose to the following folder:
C:Program FilesCommon FilesMicrosoft SharedOFFICE12Office Setup ControllerProof.en

Right click on Proof.XML file, select “Open With…” in the right click menu.
In the “Open With” window, select Notepad to be used to open the XML file. In Vista, if you can’t see the Notepad option,
 simply double click the “Other Programs” to unhide it.
Scroll down to the bottom of the Proof.XML to locate the following lines:


</Feature> <Feature Id=”SetupXmlFiles” Cost=”1248″>
<OptionRef Id=”AlwaysInstalled”/>
</Feature>

Change the AlwaysInsalled to neverInstalled so that the line looks like following:
<OptionRef Id=”neverInstalled”/>

Save the Proof.xml file. In Windows Vista, you may need to take ownership and grant full access permission to yourself
before able to modify the file.
You can now launch Microsoft Office 2007 application such as Word, Excel, Powerpoint, Outlook and etc without prompting
for activation.
As usual, as it’s a hack, and before you purchase a valid product key for it, you won’t be able to AND can’t access
 any updates or Microsoft Office Online.

Disclaimer: This article is for educational and informational purpose only.

Get help or contribute tips or tricks at My Digital Life Forums.

출처) //sara.kw.ac.kr/711

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먼저 실행->regedit으로 아래의 키값을 찾는다
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration

아래의 키값을
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration
이 이름으로 바꺼준다
HKEY_LOCAL_MACHINESoftwareMicrosoftOffice12.0Registration{91120000-0011-0000-0000-0000000FF1CE

그리고
DigitalProductID
ProductID
이2개의 키값을 삭제 하고 레지스트리 편집기 닫는다

아래의폴더로 가서
C:Program FilesCommon Filesmicrosoft sharedOFFICE12Office Setup ControllerProof.ko

Proof.XML 이파일을 텍스트 편집기로 불러와서 편집한다.
이부분을
</Feature> <Feature Id=”SetupXmlFiles” Cost=”1248″>
<OptionRef Id=”AlwaysInstalled”/>

이렇게 편집한다.
</Feature>
Change the AlwaysInsalled to neverInstalled so that the line looks like following:
<OptionRef Id=”neverInstalled”/>

편집후 저장한다
오피스 2007 얼티메이트 버전에서 확인했음