XP Common Controls Manifest: processorArchitecture='x86' vs. processorArchitecture='*'

What's the advantage of saying

#pragma comment(linker, "/manifestdependency:\"type='win32'"  \
     "name='Microsoft.Windows.Common-Controls'"               \
     "version='6.0.0.0'"                                      \
     "processorArchitecture='x86'"                            \
     "publicKeyToken='6595b64144ccf1df' language='*'\"")

instead of

#pragma comment(linker, "/manifestdependency:\"type='win32'"  \
     "name='Microsoft.Windows.Common-Controls'"               \
     "version='6.0.0.0'"                                      \
     "processorArch开发者_StackOverflowitecture='*'"                              \
     "publicKeyToken='6595b64144ccf1df' language='*'\"")

when specifing a manifest?

Using x86 means that the manifest cannot be used if you target 64 bit platforms. I'd say that this was a disadvantage. I think using * is better.