[Image-SIG] Unable to install Pil in windows7

[praveen krishna]

Hi,
  I tried to install pil in windows but it is not getting installed and
generating following errors which are attached to this mailing list .I have
installed Python 2.7 and I tried to perform registy by following the script
in this link http://effbot.org/zone/python-register.htm but is giving error
    *** Unable to register!
 *** You probably have another Python installation!


 can u please help me in sorting this and to install pil in my system to
run web2py application .
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