Hello all.

Sorry if this mail is off topic of the mail-list, but am not sure which one is right for my question.

I am writing a program which needs to know exact environment in which it is running. In case of Windows I simply use GetVersionEx and then analyze dwMajorVersion + dwMinorVersion which is enough for my case (then I know which WIN API calls I should use). But I stuck how to recognize that my program runs in ReactOS. I failed to find any docs about it. Any help is appreciated. 

P.S. I am not well experienced in WIN API, so if someone gives me an example it will be great.