Try this with Windows XP Task Manager running in the Performance tab with memory usage displayed: 1. Perform a search on a folder tree that contains 200 or more files. 2. Select all files. 3. Bring up the context menu by pressing the right mouse button. On my system, bringing up the context menu on 200 files results in a loss of about 15 MB of memory (consumed and never returned), 1000 files about 500 MB. With 2000 or more files memory use just goes off the charts and Windows Explorer crashes. Windows must be restarted to get the memory back in all cases. Disabling the Acronis True Image Shell Context Menu Extension in the registry solves the problem.