Flush disk write cache

Question

When the policy for a disk in Windows XP and Vista is set to enable write caching on the hard disk, is there a way to flush a file that has just been written, and ensure tha

Answer 1

You haven't specified the development environment, so:

.Net

IO streams have a .Flush method that does what you want.

Win32 API

There is the FlushFileBuffers call, which takes a file handle as argument.

EDIT (based on a comment from the OA): FlushFileBuffers does not need administrative privileges; it does only if the handle passed to it is the handle for a volume, not for a single file.