Missing dll files in games and softwares

Sometimes "dll" files goes missing which causes error while starting a game or installing a software.

Some of the Common errors include :

"D3DX9_27.DLL is missing. Replace D3DX9_27.DLL and try again."

"Error initializing the application because the file d3dx9_27.dll was not found."

"The application failed to start because d3dx9_27.dll was not found. Re-installing the application may fix this problem."

How to Fix those Errors

1. To fix those errors, firstly the required "dll" file has to be downloaded from
       http://www.dll-files.com/

2. Search for the required "dll" file in search bar

3. Download that file by clicking on : Download Zip - File.

4.Then you will get a rar file,open the rar-file you downloaded from DLL-files.com and  extract it, you will get two files :

5. Copy the the file d3dx9_27.dll file to C:\Windows\system

6. Then right click on that file, click on properties, then tick "read me" and "hidden" , then click on OK.

Thats it, you are done copying "dll",now that error wont show up.