As that article uses custom handlers you may need to map those handlers. Because IIS or ASP.Net processes may not understand such file extension requests.
Go through this link
http://support.microsoft.com/kb/308001[
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Refer to deploy the handler section. Note this method differ for different versions of IIS.If you using windows 7 the IIS manager has a icon link for handler mappings.
Rest of the things are similar as Sandeep Mewara said