ref SHARE_INFO_502 buf,

        private struct SHARE_INFO_502

This function will take as it's third parameter, a number of structures. The second parameter defines which level the third parameter structure is. Acceptable structures are SHARE_INFO_2, SHARE_INFO_502, and under Windows 9x/ME, SHARE_INFO_50.

    SHARE_INFO_502 info = new SHARE_INFO_502();

            public struct SHARE_INFO_502

IntPtr pBuffer = (IntPtr)Marshal.SizeOf(typeof(SHARE_INFO_502));

        SHARE_INFO_502 shareInfo = (SHARE_INFO_502)Marshal.PtrToStructure(ptr, typeof(SHARE_INFO_502));

    public struct SHARE_INFO_502

Structure SHARE_INFO_502

    struct SHARE_INFO_502

            SHARE_INFO_502 shareInfo = (SHARE_INFO_502)Marshal.PtrToStructure(bufptr, typeof(SHARE_INFO_502));