xmlsign Problem

Hello,

When going through setting up for trusted storage, there are steps for defining the trusted configuration with file <vendor>TrustedConfigIn.xml

I can do the tcencrypt step to generate the <vendor>TrustedConfigOut.xml and the <vendor>KeyFile.xml.

However when I try the step:
xmlsign -a ../ActivationSettings/publisher.xml \
-i <vendor>TrustedConfigOut.xml \
-o <vendor>TrustedConfigOut.xml

I get the message "OS error code 0x00000000"

What is this error? My publisherID matches in publisher.xml and TrustedConfigIn.xml so that is not the problem.

Any help would be appreciated, thank you.