[Shapelib] DLL -> access violation

[shapelib@lists.maptools.org]

Hi,
all times i want to opnen shapefile whit the SHPOpen function, i get this
error:

Exception in text.exe(SHAPELIB.DLL):0xC000005: Access Violation

Dont know why! The name is right and i can open the file whit normal
functions.
(VC++: CFile file.
	 file.open(...) )
Or does this funtion only work in C? I thought i can use the DLL in VC++
programms.
I include the shapefil.h and under projects i told the linker were he can
find the
shapelib.lib. What i have t do jet?
Thy for any reponse

Michael