Manual Uninstallation of WSS 3.0 | MOSS 2007

Few days before, while doing a troubleshooting in my lab on one sharepoint issue, I came across some error message and due to that, i need to uninstall Microsoft office sharepoint server 2007.
But while uninstallation of sharePoint 2007, the uninstaller launched, but vanish shortly after starting.

Attempted to uninstall by means of command line, got error message as mentioned below:-
This product installation has been corrupted. Run setup again from the CD, DVD, or other original installation source.

Cause:Unknown
I tried the below mentioned steps to uninstall Microsoft Office SharePoint Server 2007 and it worked.
Note:- This steps will also worked for Windows SharePoint Services 3.0
Stop services, delete registry hives, and delete binaries.[For WSS v3]
-Disable and Stop the following services
-Windows SharePoint Services Administration
-Windows SharePoint Services Search
-Windows SharePoint Services Timer
-Windows SharePoint Services Tracing
-Windows SharePoint Services VSS Writer

Note the following registry keys:
From HKLM\Software\Microsoft\Office Server\12.0
-InstallPath (default is C:\Program Files\Microsoft Office Servers\12)
From HKLM\Software\Microsoft\Shared Tools\Web Server Extensions\12.0
-Location (default is C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12)

Delete the following folders:
The value of the InstallPath key
The value of the Location key C:\%CommonProgramFiles%\Microsoft Shared\SERVER12

[For MOSS 2007]
Disable and Stop the following services
-Microsoft Single Sign-on Service
-Office SharePoint Server Search
-Windows SharePoint Services Administration
-Windows SharePoint Services Search
-Windows SharePoint Services Timer
-Windows SharePoint Services Tracing
-Windows SharePoint Services VSS Writer

Delete the following registry hives:
HKLM\Software\Microsoft\Office Server\12.0HKLM\Software\Microsoft\Shared Tools\Web Server Extensions\12.0
[x32] - HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\OSERVER
[x64] - HKLM \SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\OSERVER

Delete the following folders:
The value of the InstallPath keyThe value of the Location key
C:\%CommonProgramFiles%\Microsoft Shared\SERVER12

Restart the server and perform an installation as normal.