Try adding this to your config.xml
or
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I could fix it myself, under HKLM\Software\Microsoft\Update Services\Server\Setup I changed the value for the "wYukonInstalled" key from 1 to 0 and the updater didn't look for the Windows Internal Database anymore.
Get-WmiObject win32_bios
Get-WmiObject win32_bios | Select-Object SMBIOSBIOSVersion
Get-WmiObject win32_bios | Select-Object *and finally the shortest way I know how to do this.
GWMI Win32_bios | select *