Vote for PSTCompress
PSTCompress is a way to manage PST file compression. Starting a PST compact for every individual PST file is almost impossible. PSTCompress is the safe solution that adds a flexible scheduling mechanism to the whole PST compacting mechanism. PSTCompress automatically fires off a job at the desired time and stops when you want it to stop. This can be done in the weekend or whenever you like. No intervention needed! Additionally, PSTCompress lets you configure the way you want to compact the PST's. You can start a PST compact manually or by using a schedule. You can decide to empty the deleted items, clean out the sent items or even zip attachments prior to starting the PST compact exercise.
Features include: Server based PST compacting;Reorganizes PST files safely; Scheduled activation; Reduces backup times; Reduces PST corruptions; Includes folder housekeeping; Includes attachment zipping; Command Line Interface.