[Rails] how to install ror on windows 7

Hi all,
i want to learn ruby on rails.i am using window7  .
I installed  ruby 1.9.2 p0 in "C:\ruby"   using one click
installer.and then installed
rails using the command "gem install rails". and rails get installed
successfully. After that i tried to build a sample application.so i
created a new folder in c like  "c:\venkat" and  i moved to that
folder in the command prompt and  i created an application venu by
giving the command              "c:\venkat rails new venu" . And now i
came to know that  i have to start the server at this point of time
and i tried to start the server usting the command "rails server" but
after entering this command  i got an error like  "  the program cont
start because sqlite3.dll is missing from your computer.try
reinstalling the program to fix this problem."  so i downloaded
sqlite3.dll and pasted it in the C:\windows\system32" and tried once
again to start the server. But now i got a new error like "The
rocedure entry point sqlite3_backup_finish could not be loacated in
the dynamic link library Sqlite3.dll"

what i have to do next? pls help...

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Thanks&Regards
B.Venkata Reddy,
Mob:9959345033.

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