Installing Arduino Drivers on Win 8, Dialog requires 64-Bit drivers, advice?

Are there any 64-Bit drivers for the Arduino USB Com port?

When attempting to install the current drivers, a Windows dialog states "You have to run the 64-Bit version of DPInst.exe on this machine."

It will not operate under the Compatability Troubleshooter.

Any guidence appreciated.

Solved Set up as a Compaq modem.