How to access QAxObject property?

[0BLACK0]

i have App that uses QAxObject
and according to msdn :
https://msdn.microsoft.com/en-us/library/aa394077(v=vs.85).aspx

it have property SMBIOSBIOSVersion

but i don't know how to access this property in qt without any external libs
if i use "->property()" it just return QVariant(Invalid)

why can't post my code ?
every time i try it gave me error:

"Oh, this looks like spam to us.

Since your account is quite fresh we could be wrong. Try including only one URL into your post. Usually, hitting the back button will give you access to your post again. We're sorry for the inconvenience."

it's Qt code main.cpp and untitled.pro
any way the code is there
http://pastie.org/9958553

win xp sp3
vs 2010 sp1
Qt 5.4.0