Tiger Seal is a very useful product, however a few tips about this particular application;
1. Be strategic about where it is applied - it will spread out a little when compressed, and will bond whatever it comes into contact with.
2. Bearing the above in mind, I would suggest that once the adhesive has been applied, that the window is closed, with a sheet of newspaper covering the bottom of the opening. Otherwise any errant seal may come into contact with the bodywork and prevent the window from opening (or mean that the rubbers are ripped, whilst trying to open the window).
3. Do this on a dry day, and allow the adhesive a few days to set - it remains flexible (ideal for applications where a degree of movement is desirable), but will form a very strong bond.
Best of luck, and if any spills, some thinners on a rag will remove it.
Hope that helps,
Paul (thanks Pat, for the heads up