[How to] Make a in-place upgrade from Windows 7 RC to Windows 7 RTM

I still remember when i was running Windows 7 Beta, someone's wondering if he could upgrade to RC from Beta directly. Although the upgrade path was not available according to Microsoft, there is a workround to make it.

And now, it's WIndows 7 RC's turn. For anyone who really wants to do a in-place upgrade to Windows 7 RTM, here is a work round to make it possible.

* Use Winrar or Daemon Tools to unzip or mount the Windows 7 RTM Build 7600.16385DVD ISO
* Open cversion.ini under sources folders
* Replace its content with:

[HostBuild]
MinClient=7000.0
MinServer=7100.0

* Save and quit
* Recreate a ISO or just hit the setup.exe

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