The FontCache subkey in the following Registry path contains entries that define parameters for font caching:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
\FontCache
The value entries in the FontCache subkey can greatly influence the amount of memory used by the system. However, these values should not be modified, except in the rare case where you must tune the performance for an international version of Windows NT or for specialized cases such as a print shop, where you may be manipulating large character sets.
MaxSize REG_DWORD Number of kilobytes
Specifies the maximum amount of address space reserved per font cache.
Default: 0x80
MinIncrSize REG_DWORD Number of kilobytes
Specifies the minimum amount of memory committed each time a font cache is grown.
Default: 0x4
MinInitSize REG_DWORD Number of kilobytes
Specifies the minimum amount of memory initially committed per font cache at the time of creation.
Default: 0x4