1. File resource modifier: ResHacker.exe 2. Dynamic Link Library file: ContextBG.dll.

Add steps:

1. Open the CONTEXTBG.DLL file with the resource modifier.

2. modify the dll file.

3. Replace the bitmap in the dll.

4. Save after replacement.

5. Copy the modified dll file to the system32 directory of the system.

6. Register the dll file into the system and start running (shortcut key win+R). Enter the following two commands respectively.

7. Effect display.