If a Windows program with high power starts from a path without quotes, where would you put your own harmful program so the powerful one runs yours instead?

When a Windows program, especially one with high power such as a service, is configured to start from a file path containing spaces without enclosing the entire path in quotation marks, a vulnerability known as an "unquoted path" exists. Windows interprets an unquoted path containing spaces by progressively attempting to execute each segment of the path up to the first space, then up to the second space, and so on, until it finds an executable. For instance, if a program is ....