Question : Block by Registry policy setting

I am begin plagued by the following error:
"You are attempting to save a file type that is blocked by your registry policy setting"
I get it when I open an XML file in excel 2003 and try to save it as a Lotus spreadsheet (WK4)
Normally, I run the UnblockExcel.reg file and it clears it up.
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
"LotusandQuattroFiles"=dword:00000000
"LegacyBinaryFiles"=dword:00000000
"LegacyDatabaseAndDatasourceFiles"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileSaveBlock]
"LotusandQuattroFiles"=dword:00000000
"LegacyBinaryFiles"=dword:00000000
"LegacyDatabaseAndDatasourceFiles"=dword:00000000

I've run the reg file but under the Admnistrator account but in this case, process is automated and running under a service (DirectoryWatcher) which logs in under the Local System Account so I think that's the problem.
This process is running on a Server 2003 OS.

How do I get these reg settings to apply to the Local System account?

Thanks,
Tom

Answer : Block by Registry policy setting

For the SYSTEM account, edit the setting under the registry hive HKEY_USERS\.DEFAULT.