If you running 64-bit Operating System of Windows 7/8/8.1 you have this:.If you running 32-bit Operating System of Windows 7/8/8.1 you have this:.Look at the System Type and what is listed next. If you’are running 64 bit Windows, additionally place file in \Windows\SysWOW64. Place amtlib.dll cs5 in \Windows\System32 (usually located at disk C) if you’re running 32 bit Windows. Read it below and you will know where to put amtlib.dll cs5. Here is complete guide of amtlib.dll cs5 installation.