Registry Settings for Other FATFS Options
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8/28/2008
FAT file systems have numerous registry values you can set to control or customize the file system.
**The following table shows miscellaneous registry values you can set to control or customize FAT, exFAT, and TFAT file systems. Note that some of these values are set by default. Note that some of these values are part of the Default Registry Settings for FAT, exFAT, and TFAT.
| Registry value: Type | Applies to | Description |
|---|---|---|
BufferSize: REG_DWORD |
FAT, exFAT, TFAT |
Set to the number of sector-sized buffers to use for streams. The default value is 64 for TFAT and 32 for FAT. |
CodePage: REG_DWORD |
FAT only |
Overrides CP_OEMCP in all character conversions. |
DirHandleWrite: REG_DWORD |
FAT, exFAT, TFAT |
Set to 1 to allow support for writing to directories through directory handles. |
Dll: REG_SZ |
FAT, exFAT, TFAT |
Specifies the name of the file system DLL. |
Flags |
FAT, TFAT |
Indicates FAT file system registry flags. Default is 64. For more information, see Flags Registry Subkey. |
LockIoBuffers: REG_DWORD |
FAT, exFAT, TFAT |
Set to 1 (default) to indicate that FSD Manager should call LockPages to page-in all input/output buffers.Set to 0 only if the file system driver performs all I/O buffering. |
Util: REG_SZ |
FAT, exFAT, TFAT |
Specifies the DLL name of utility to do format and scan, such as fatutil.dll. |