# ARX Command [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) → [A](Help%20System/GSTARCAD/2021/Commands/A/(A).md) The ARX command is used to load, unload Object ARX application program and provide related information. **Command Access:** > **Command:** ARX **Command Prompts:** > Enter options \[File/Group/Command/CLass/Service/Load/Unload\]:: **Relative Glossary:** **File:** List current loaded object ARX application program, it could be the third party program or internal application program (such as Render). **Group:** Make the specified command group as the firstly searched one when users are interpreting command names. **Command:** List AcEd registered commands. **CLass:** Display C\+\+ hierarchical structure defined by registered objects in system. **Service:**List all names of registered service. **Load:** Display “ObjectARX/DBX file” dialog box. Users could use this option to load specified ObjectARX application programs. **Unload:**Unload specified ObjectARX application programs. ## Other versions with matching text [GstarCAD 2016](../../../2016/Commands/A/ARX%20Command--fef1e5371d69.md) · [GstarCAD 2017](../../../2017/Commands/A/ARX%20Command--fef1e5371d69.md) · [GstarCAD 2018](../../../2018/Commands/A/ARX%20Command--fef1e5371d69.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/A/ARX%20Command--fef1e5371d69.md) · [GstarCAD 2020](../../../2020/Commands/A/ARX%20Command--fef1e5371d69.md)