Here is the c# code for converting to and from the bytes

byte[] GetBytes ( decimal? value )

{

if ( value == null )

{

return null;

}

byte[] bytes = new byte[16];

int[] bits = Decimal.GetBits ( (decimal) value );

Array.Copy ( BitConverter.GetBytes ( bits[0] ), 0, bytes, 0, 4 );

Array.Copy ( BitConverter.GetBytes ( bits[1] ), 0, bytes, 4, 4 );

Array.Copy ( BitConverter.GetBytes ( bits[2] ), 0, bytes, 8, 4 );

Array.Copy ( BitConverter.GetBytes ( bits[3] ), 0, bytes, 12, 4 );

return bytes;

}

//--------------------

decimal? ToDecimal ( byte[] value )

{

if ( value == null )

{

return null;

}

int[] bits = { BitConverter.ToInt32 ( value, 0 ), BitConverter.ToInt32 ( value, 4 ), BitConverter.ToInt32 ( value, 8 ), BitConverter.ToInt32 ( value, 12 ) };

return new decimal ( bits );

}