When uninstalling a program, you are sometimes asked if a particular DLL file can be deleted. Whether this DLL file is still needed, check with a look at the registry.
1. Start the registration editor via Start – All Programs – Accessories – Run (WIN+).
2. Enter the regedit command and press .
3. Find the key HKEY LOCAL MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs.
4. In the right window you can now see the DLL files. In the “Value” column, look closely at the digits in brackets. This value specifies how many files this DLL is required for. If the DLL is 0, you can delete it in Windows Explorer.