Macromedia Flash Question

I downloaded the trial version of Macromedia FLash 6.0 (which is a full version until 30 days is up, then you can't open it). I have a SN to make it a full version, but I cannot figure out where to enter it. Sometimes applications will have a combination of keys to press to open a "secret window" where you enter the SN. Does anyone know if this is the case with Flash 6? And if so, how do I do it? Thanks in advance for any help :-)

I don't know about Flash 6 but the prerior versions asked on startup.