# HELPPREFIX System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [H](Help%20System/GSTARCAD/2021/System%20Variables/H/(H).md) **Function Description:** The HELPPREFIX system variable is used to set the file path for the Help System. | | | | --- | --- | | Type | Strings | | Saved in | Registry | | Initial value | Unknown | **System Variable Value:** This system variable determines the default setting in Options dialog box \> Files tab \> Help and Miscellaneous File Names option \> Help Location option. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md) · [GstarCAD 2018](../../../2018/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md) · [GstarCAD 2019](../../../2019/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md) · [GstarCAD 2020](../../../2020/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/H/HELPPREFIX%20System%20Variable--8e832c80d885.md)