How to modify MCE to join a domain

[Pistolero]

I have succeeded in exporting the reg key responsible for allowing a Media Center 2005 install to join a domain, and I would love to be able to import it to the registry before it becomes read only. Is there a way to do this during Text Mode setup (just like SETUPREG.HIV), or early during GUI mode?

Or is there another way to write to this READ ONLY key before it becomes so?:

"HKEY_LOCAL_MACHINE\SYSTEM\WPA\MedCtrUpg\IsLegacyMCE" REG_DWORD from 0 to 1

Any help would be greatly appreciated!

[Bezalel]

I have succeeded in exporting the reg key responsible for allowing a Media Center 2005 install to join a domain, and I would love to be able to import it to the registry before it becomes read only. Is there a way to do this during Text Mode setup (just like SETUPREG.HIV), or early during GUI mode?

Or is there another way to write to this READ ONLY key before it becomes so?:

"HKEY_LOCAL_MACHINE\SYSTEM\WPA\MedCtrUpg\IsLegacyMCE" REG_DWORD from 0 to 1

Any help would be greatly appreciated!

You can join a domain during setup because because at that point it is running Pro and hasn't been converted to MCE Yet. The values under "HKEY_LOCAL_MACHINE\SYSTEM\WPA" only become readonly after the next boot so you can make the changes after the value is written (I'm not sure when this value is created but I'd guess it is during GUI mode but before cmdlines.txt is processed).