# HELPPREFIX System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [H](Help%20System/GSTARCAD/2026/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. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Hgsv/HELPPREFIX.html) · © Gstarsoft Co., Ltd.