Hi, Christopher Leslie wrote: > Here's the .xml and the .reg > > <packages> > <package > id="morrisoncert" > name="Security Cert for IV4" > revision="1" > priority="100" > execute= "always"> > <check type="registry" condition="exists" > path="HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\910C309AD02F637DE043158A04ADDBE468E0422A" > <install cmd='regedit /s "%SOFTWARE%\Software\morrisoncert.reg"' /> > </package> > </packages> Try changing the check to check for the existens of the written Blob value instead of the plain key: <check type="registry" condition="exists" path="HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\910C309AD02F637DE043158A04ADDBE468E0422A\Blob" /> In addition it looks a bit to me like the XML sniplet you used above is not valid XML (closing tag of check node missing). Well, I might be too tired at the moment... br, Rainer |