This policy controls whether or not the "Always open" checkbox is shown on external protocol launch confirmation prompts.
If this policy is set to True, when an external protocol confirmation is shown, the user may choose to "Always open" the protocol without future confirmation prompts.
If this policy is set to False or not set, the "Always open" checkbox is not displayed and the user will be prompted each time an external protocol is invoked.
| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Google\Chrome |
| Value Name | ExternalProtocolDialogShowAlwaysOpenCheckbox |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |