Or if ultra high speed is not an issue check out the use of INI files (code archives).
When Windows first reads an INI file it buffers it, so subsequent reads are done in memory i.e. it doesn't have to access the disk every time, so can be very fast.
When Windows first reads an INI file it buffers it, so subsequent reads are done in memory i.e. it doesn't have to access the disk every time, so can be very fast.