Logitech QuickCam

Hi I just want to know what was wrong about my code, if anyone can help plz reply to this asap plz, thank you very much.
(LVideo is a component for a Logitech QuickCam)

Private Declare Function SystemParametersInfo Lib "user32" Alias "SystemParametersInfoA" (ByVal uAction As Long, ByVal uParam As Long, ByVal lpvParam As Object, ByVal fuWinIni As Long) As Long

Const strPath as string = "C:\"

With LVideo
.Initialize(0)
.SaveSingleFrameToFile (strPath, "Image.bmp")
.UnInitialize()
End With

SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, strPath & "Image.bmp", SPIF_UPDATEINIFILE)

I also tried Image instead of Image.bmp it just doesnt save it to the hard drive, I have no idea why.
VB.NET