Hi Dan,
+1 after reading for 1.1, however for 1.2 (= TYPO3 4.3) we don't need
the makeInstanceClassName anymore, and should use
"t3lib_div::makeInstance('t3lib_lock', 'tx_dam_indexing_' .
md5($filename)....
Otherwise we'll get too many deprecation warnings :)
All the best,
Benni.