Replace JScript by loading JScript9Legacy in place of JScript.
- Policy ID
- JScriptReplacement
- Scope
- Computer Configuration, User Configuration
- Supported on
- At least Internet Explorer 11.0
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer
Description
This policy setting specifies whether JScript or JScript9Legacy is loaded.
If you enable this policy setting or not configured, JScript9Legacy will be loaded in situations where JScript is instantiated.
If you disable this policy, then JScript will be utilized.
Registry
ComputerHKEY_LOCAL_MACHINE
- JScriptReplacementREG_DWORD
UserHKEY_CURRENT_USER
- JScriptReplacementREG_DWORD