I need to do some checking, but I'm pretty sure the third to last property is not correct.
<Property name="xconfmanager" overridable="true" targetFile="codebase/wvs.properties"
value="-t C:ptcWindchillcodebasewvs.properties -s publish.cadconvert.PROE=com.ptc.wvs.server.publish.CadConvertPROE ?p"/>
It almost seems like the command wasn't entered quite right. (Notice the ?p at the end.)