>>>>>>Is there any setting to have this deferred writing turned off, or should I just close and reopen the target file every now and then?
>>>>>
>>>>>Uses you a buffered file ?
>>>>
>>>>Mmm... good idea. The source file is buffered. Didn't find any parameters in the fCreate() command that would influence any buffering, but then I could close it immediately after and do a fopen(cTargetFile, 11) (unbuffered, write-only). I'll see what this gives me.
>>>
>>>Dragan, Don't forget to post the result to me.
>>
>>fFlush() wasn't even necessary... your idea to use unbuffered LL file operation was exactly what I needed. Works perfect.
>
>Well Dragan, was what I wanted to feel.
>
>Certainly that an enigma remains to understand because
>FCREATE() doesn't allow to disable the OS buffering.

Here's what I did - fcreate()d it, then closed and opened write-only without buffering:

Procedure DoCopy(tcF1, tcF2)
*-- dn 26/08/05
	Local c, o, N, i, l, cCRS, h1, h2, nSoFar, nChunk

*[2005/08/29 09:01:05] dragan - try without buffering, as Fabio suggested
	h1=Fopen(tcF1,10)
	h2=Fcreate(tcF2)
	=fclose(h2)
	h2=fopen(tcF2,11)

	N=Fseek(h1,0,2)
	Fseek(h1,0,0)
	nSoFar=N/40
	nChunk=nSoFar
	Do While !Feof(h1)
		c=Fread(h1, 0x7fff)
		Fwrite(h2,c)
		i=Fseek(h1,0,1)
		If i>nSoFar
			oLog.Log(Transform(i/N*100, "999.99%")+" copied")
			nSoFar = nSoFar + nChunk
		Endif
	Enddo
	Fclose(h1)
	Fclose(h2)