What is rdpwrap and how does it enable multi-user RDP without modifying system files?

rdpwrap is a tool from GitHub (stascorp/rdpwrap) that supports multi-user remote desktop on Windows Vista through 10 without altering `termsrv.dll`. It works by injecting its own `rdpwrap.dll` into the same process, passing different parameters to the service. To install, run `RDPWInst.exe -i`; to uninstall, use `-u`. This method is ideal for penetration testing where you want to avoid permanent system changes. Learn more about this and related techniques in the full article.