PCSGU250 dll with 64bit

Hi,
i’m writing a program using c# (visual studio 2010) and i would like to add some procedures to comunicate with my pcsgu250. The problem is that the PCSGU250.dll is a 32bit dll and i would like to debug my program at 64bit but i have the following error:
Attempt to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)

Do someone know if a 64bit dll did exist? Or is it possible to fix this problem without debugging my program at 32bit??

Thanks, regards