Plutonium

Im using windows 7. Plutonium showed an error saying XINPUT1_4.dll missing. went online to check for a solution, the solution was to download directx and then copy file named XINPUT1_3.dll to desktop, rename the file by changing the 3 to 4, re paste it in system 32 file and in game file, and that what was done.

I need assistance into knowing what steps i should be doing and whether everything was done correctly or not because every time i access plutonium launcher to play it crashes.

I followed the steps exactly as mentioned in the installation steps, i previously had a pre-installed version of the game through steamunlocked but then i delete it and followed plutonium forum steps. downloaded the torrent, it went to downloads file on C to i relocated the file to the D drive where enough space is. launched plutonium, set the path as to D/cod/ 'file name'. Previously is started showing error for XINPUT1_4.dll not found. Reinstalled Directx from microsoft website and relocated the XINPUT1_3.dll in system win32 file after renaming according to the steps online. but still launcher kept crashing every time a click on play even after adding it to the exempted file on windows security essential. what should i do? am i missing something, or perhaps i need to download the game separately? please guide me