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What's new in PerfectDisk 2008 Build 64
　Bug Fixes
　　Several bug fixes and enhancements in PerfectDisk's defragmentation driver.
　　System tray icon shows that PerfectDisk is idle while defragmenting.
　　Potential vulnerability of calling CreateProcess() or ShellExecute() functions without using quoted paths.
　　Defragmentation of Virtual Machine host files does not work with all options unchecked.

What's new in PerfectDisk 2008 Build 63
　New Features
　　Support for per-user quotas set with File Server Resource Manager.