Sorry,Its intended for thread starter. regards Vairavan

Means The file is not there in the specified path.I want to know what u or passing to szDriverName. regards Vairavan -- modified at 0:52 Friday 1st September, 2006

Can u give some more info reg ur requirements?.If u want to control ur hardware with RS232/USB u need to create handle to ur device then u can do read/write to ur device.For that u should know the command formats supported by ur device.Is it a printer/storage/camera or any thing else?. If u give give more details i will be able to provide more info. regards Vairavan

I dint get ur question.We can create symbolic link only inside the driver code.In our AddDevice Routine normally we do that using IOCreateSymbolicLink.To know more about this see DDK documentation. But for viewing the symbolic links available in ur system u can use tools Like WinObj,DevView or ObjView.This u can get from sysinternals.com or oneysoft.com. If u can give some more explanation on ur need i can try more. regards Vairavan System software Engineer TCS

Hi,MapViewOfFile Fails only when ur application continuously do that or systems virtual memory is low.Is ur application continuously doing MapViewOfFile?.If u r doing so u have to ummap the previous Mapped views using UnMapViewOfFile.But u can use the same handle which u got from CreateFileMapping/OpenFileMapping api. regards Vairavan

try SetCurSel(ItemNumber)

I was facing the similar problem.Is the MapViewOfFile fails first time itself?.If its not then u have to UnMap the Previous view then u have to Map it once again.For this u can use the same handle ,which u got from CreateFileMapping. regards Vairavan