error C2099: initializer is not a constant

[skyworld]

Hi,

I defined such parameters in test.h to setup my GUID for driver
application GUI:

DEFINE_GUID(CY_DEVICE_ORIGINAL,
0xfeca14b8, 0x9796, 0x452c, 0xac, 0x3b, 0x87, 0x8c, 0x9e, 0xbd, 0x54,
0x2b);

GUID CY_DEVICE = CY_DEVICE_ORIGINAL;

But when I compile the project with visual c++, I got such message:

error C2099: initializer is not a constant

which indicates there is something wrong with "GUID CY_DEVICE =
CY_DEVICE_ORIGINAL". Can anybody help me to understand this? Thanks
very much.