The eMxInfo entry on the share is scoped to collections and nocollections, so
a marker bay never heals. Marker bays run eDNC as well - 01-eDNC.ps1 installs
it before the Mark MSI - so the same vendor installer clobbers the same file
there, with nothing to restore it.
The fix is a scoping change rather than a new mechanism: add the marker PCType
to the existing entry. The paths it already writes are the right ones, because
mxTransactionDll.dll in the Mark overlay reads \Dnc\Server Files\eMxInfo.txt -
the Mark suite uses the DNC install, not its own directory.
The cmd variant additionally refreshes the copy that imaging drops into the
Mark directory. Nothing reads that path, so it is cosmetic; it is there so a
healed bay and a freshly imaged one are identical, rather than differing in a
way that costs somebody an afternoon later.
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