fix NPEs when SBSv2ConfigQueryData does not exist due to it's EPOCROOT no longer existing (e.g. removing the subst)
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<toc label="Carbide.c++ User Guide" href="html/debugger.htm" >
<topic label="Release notes" href="html/release_notes.htm" />
<link toc="tocCarbide.xml" />
<anchor id="anchorCarbideCPPMisc" />
<topic label="Bugs fixed" href="html/bugs_fixed.htm" />
<anchor id="anchorNokiaOther" />
<topic label="Legal" href="html/legal.htm" />
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