Simple Run Blocker (SRB) is portable freeware created to simplify the process of blocking applications being used. This can come in handy, for example, to prevent children using certain programs. SRB offers a ‘drag and drop’ ease of use not found in most other tools of this type. You can drag an executable to the SRB window and it will automatically be blocked. SRB also features a “white list” mode, which blocks all executables except your specifically approved applications.-Simple Run Blocker (SRB) is portable freeware created to simplify the process of blocking applications　being used. This can come in handy, for example, to prevent children　using certain programs. SRB offers a ‘drag and drop’ ease of use not found in most other tools of this type. You can drag an executable to the SRB window and it will automatically be blocked. SRB also features a “white list” mode, which blocks all executables except your specifically approved applications.