Optimise The System Cache - Performance Enhancement Windows XP Registry Hack

Desktop systems are normally optimised for applications, and servers for file caching. Depending on how you use your system, you may want to optimise your system for either.

Navigate to:

HLM\ SYSTEM\ CurrentControlSet\ Control\ Session

Manager\ Memory Management

Find the setting LargeSystemCache. Set this DWORD value to 1 for server behaviour or to 0 for desktop behaviour.

Some programs such as SQL Server and Exchange Server set this value during installation and override the change.