@Obfuscated : my entire environment is described in my signature : "Main env. : Win. 7 Pro, Code::Blocks SVN 8248 w/ wxSmith, TDM-GCC 4.6.1 & MSVC9, wxWidgets 2.9.3".
And about cross-platform : even if Linux and OSX don't know VERSIONINFO (thanks about OSX, I didn't know ; I'm new in OSX and simple user in Linux until now), you can reuse these info and display them in about-box, whatever be the OS. So, this VERSIONINFO is OS-independent in a certain aspect (just a structure in a resource that you can use the way you want). My question was not Windows specific !
@Morten : of course, by hand is a way... My question was to be aware of the usual of anybody : so, 2 votes for "by hand" way