BIOS build number and Identification number?

I want to get the BIOS Build number and Identification number. I am already using WMI class Win32_Bi开发者_如何学编程os dataclass but I it is not returing the value for Build number and Identification number on any of the windows OS.

can any one let me know how should I go to get the above fileds mentioned for bios?

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Regarding the "build number", there is no specification that requires a BIOS vendor to provide a build number, so you will not always find one.

Regarding the "identification number" (by which I assume you mean the version number?), in my experience there is a field inside Win32_Bios called "SMBIOSBIOSVersion". This would be the version number.