RemoteDLL is the tool which makes it easy to inject the DLL or free the DLL from a remote process.
This tool is based on popular DLL Injection technique which has already been used in many top programs such as pwdump. Many spyware programs use this technique to hide their presence. Many of these come as DLL and inject themselves to legitimate windows process and operate from that process so that normal user will not suspect its presence. Using RemoteDLL, you can easily remove such DLL from the process and then delete it from the system completely.