Abstract: A method and a computer system are provided for starting a process of an application. When starting the application, the computer system may load a second dll file by default. However, in instances when a first dynamic link library file is to be injected into the process, a driving module adds information about the first dynamic link library file into an import table of the second dynamic link library file. The second dynamic link library file that includes the import table with the added information of the first dynamic link library is loaded into memory. In this manner, the default-loading mechanism of the system is bypassed, and the first dll file is injected by modifying the import table of the second dll file before it is loaded into memory. Therefore, it is not required to load the first dll file while executing the process of the application.