Problem with OSL rendering

Hello, I use Windows 8.1 is a 64bit with 64bit Blender 2.71 and I also get error every time I try to render in OSL, even with the default scene that brings Blender. I get this error:

I also downloaded the 32 bit Blender and not get error but the program remains frozen. I have a Mac with OSX 10.10 Yosemite and gives no problems.

Any solution?

PD: Sorry for my English.