Indeed, Windows has the annoying tendency to keep the DLL in memory even after leaving an application. The following trick will force Windows to unload unused DLLs from memory.
Click "Start" "Run ..." then type "regedit" and click "OK"
Go to the key: "HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Explorer"
Create a DWORD value named "AlwaysUnloadDll" and give it the value "1"
You can also Copy the Following code in Notepad and save as unuse.dll and do Right-Click and Click Merge.
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer]
"AlwaysUnloadDll"=dword:00000001
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