be more inclusive while unregistering keys in uninstall. Wipe out both 32 and 64 xll's OPEN HKCU keys.
be more inclusive while unregistering keys in uninstall. Wipe out both 32 and 64 xll's OPEN HKCU keys.

Add comment about a tricky situation where user may have change of Office version (32 to 64 or conversly)

Excel-DNA/WiXInstaller