[Tutor] install on windows

[larry seibold]

I am stuck at step one, installing "python-2.7.5.msi" on windows XP.  I 
downloaded it (~16MB), but when I select it (double click), I get a 
windows installer pop up with an OK button at the bottom, which when 
selected seems to terminate the install vs. install the program.  I do 
not see any advice on a different procedure.  Help.  Do I need to run 
the msi from a command window with options?