My bet would be on antivirus software that automatically scans any new file created. I recently ran into this with XML files.

>hello everybody.
>
>does anyone have an idea why the following errors "File In Use" on the 2 delete comands?
>the created form releases fine, exits, and the code (the delete comands) are executed, but fail.
>

>		LOCAL ;
>			SaveInPath, ;
>			VcxName, ;
>			ClassName
>
>		SaveInPath	= GetPath("TEMP", .T.)
>		VcxName		= SUBS(SYS(2015), 2) + ".vcx"
>		ClassName	= "MSChartTempClass"
>		THISFORM.Pageframe1.ReportGraph_Page.Chartarea1.SAVEASCLASS(SaveInPath + VcxName, ClassName, "")
>
>		THISFORM.VISIBLE		= .F.
>		THISFORM.WINDOWSTATE = 0
>
>		FullSizeDisplay = NEWOBJECT("FullSizeDisplay", THIS.CLASSLIBRARY)
>		set classlib to (SaveInPath + VcxName) addi
>		*FullSizeDisplay.NEWOBJECT(ClassName, ClassName, (SaveInPath + VcxName))
>		FullSizeDisplay.AddOBJECT(ClassName, ClassName)
>		FullSizeDisplay.LOCKSCREEN				= .T.
>		FullSizeDisplay.VISIBLE					= .T.
>		FullSizeDisplay.oCallingForm			= ThisForm
>		FullSizeDisplay.&ClassName..TOP		= 0
>		FullSizeDisplay.&ClassName..LEFT		= 0
>		FullSizeDisplay.&ClassName..WIDTH	= FullSizeDisplay.WIDTH
>		FullSizeDisplay.&ClassName..HEIGHT	= FullSizeDisplay.HEIGHT
>		FullSizeDisplay.&ClassName..VISIBLE	= .T.
>		FullSizeDisplay.LOCKSCREEN				= .F.
>		FullSizeDisplay.SHOW(1)
>
>		* *** clean up
>		FullSizeDisplay = .NULL.
>		RELEASE CLASSLIB (SaveInPath + VcxName)
>		* *** for some reason the delete command
>		* *** errors "file in use"
>		*clear CLASSLIB (SaveInPath + VcxName)
>		DELETE FILE (SaveInPath + VcxName)
>		DELETE FILE (SaveInPath + JUSTSTEM(VcxName) + ".vct")
>
>		THISFORM.VISIBLE = .T.
>

>thanks for all your help!