Hi Byran,

>How can I change a file's timestamp programatically?

Here's a post from Erik Moore:
**************
You can do this with the FoxTools Touch function. Here is some code I put together recently to do exactly that.

FUNCTION SetTimeStamp
	LPARA tcFileName, ttNewTimeStamp
	LOCAL loRegistry
	SET PROC TO clsheap ADDI
	SET LIBRARY TO "foxtools.fll" ADDI
	oRegistry = CREATEOBJECT("Registry")
	lnTimeZoneOffsetMinutes = DWORDToNum(oRegistry.GetStringValue(oRegistry.hkey_Local_Machine, ;
			"SYSTEM\CurrentControlSet\Control\TimeZoneInformation", "ActiveTimeBias", ""))
	lnOffsetSeconds = lnTimeZoneOffsetMinutes * 60
	
	ttNewTimeStamp = ttNewTimeStamp + lnOffsetSeconds
	RELEASE oRegistry
	IF FILE(tcFileName)
		=FoxTouch(tcFileName, YEAR(ttNewTimeStamp), MONTH(ttNewTimeStamp), DAY(ttNewTimeStamp), ;
							HOUR(ttNewTimeStamp), MINUTE(ttNewTimeStamp), SEC(ttNewTimeStamp))
		RETURN .T.
	ELSE
		RETURN .F.
	ENDIF
ENDFUNC

This function uses my registry class to get the TimeZone offset from the registry, and Ed Rauh's CLSHeap to translate the DWORD offset value to a Visual FoxPro numeric.

You can adjust the code to fit your needs.