API found in C# but not VB?

i really hope im just overlooking something very simple bc i have an API call in VB.net that doesnt work, yet the same call in C# works....in VB i get an error saying the Entry Point cannot be found....code below

Code:

[DllImport("setupapi.dll", SetLastError=true)]
                static extern  unsafe int SetupDiGetDeviceInterfaceDetail(
                        int  DeviceInfoSet,
                        ref SP_DEVICE_INTERFACE_DATA lpDeviceInterfaceData,
                        int* aPtr,
                        int detailSize,
                        ref int requiredSize,
                        int* bPtr);

                [DllImport("setupapi.dll", SetLastError=true)]
                static extern  unsafe int SetupDiGetDeviceInterfaceDetail(
                        int  DeviceInfoSet,
                        ref SP_DEVICE_INTERFACE_DATA lpDeviceInterfaceData,
                        ref PSP_DEVICE_INTERFACE_DETAIL_DATA                                                                                                                                                                         myPSP_DEVICE_INTERFACE_DETAIL_DATA,
                        int detailSize,
                        ref int requiredSize,
                        int* bPtr);

SetupDiGetDeviceInterfaceDetail(
                                hDevInfo,                                                      
                                ref mySP_DEVICE_INTERFACE_DATA,        
                                null,                                                          
                                DeviceInterfaceDetailDataSize,          
                                ref RequiredSize,                                      
                                null);

Friend Declare Function SetupDiGetDeviceInterfaceDetail Lib "setupapi.dll"
(ByVal DeviceInfoSet As Integer, _

   ByRef lpDeviceInterfaceData As SP_DEVICE_INTERFACE_DATA, _

   ByRef myPSP_DEVICE_INTERFACE_DETAIL_DATA As
PSP_DEVICE_INTERFACE_DETAIL_DATA, _

   ByVal detailSize As Integer, ByRef requiredSize As Integer, _

   ByRef bPtr As Integer) As Integer

    Friend Declare Function SetupDiGetDeviceInterfaceDetail Lib
"setupapi.dll" (ByVal DeviceInfoSet As Integer, _

   ByRef lpDeviceInterfaceData As SP_DEVICE_INTERFACE_DATA, _

   ByRef aPtr As Integer, ByVal detailSize As Integer, _

   ByRef requiredSize As Integer, ByRef bPtr As Integer) As Integer

     Dim results As Integer = SetupDiGetDeviceInterfaceDetail(hDevInfo,
myInfo, myPspInfo, DeviceInterfaceDetailDataSize, _
RequiredSize, Nothing)

--
-iwdu15