Properties

Define custom MSI properties. Useful as inputs to custom actions, conditions, dialog text, or runtime-resolved registry / env-var values.

Property	Type	Required	Default	Description
`name`	`string`	yes	–	MSI property name. Convention: `UPPER_CASE_WITH_UNDERSCORES`.
`value`	`string`	conditional	–	Property value. Optional only if `saveOnRepair: true`.
`saveOnRepair`	`boolean`	no	`false`	If true, the property's runtime value is saved and re-applied during repair.

Example

"msi": {
  "properties": [
    { "name": "TELEMETRY_ENABLED", "value": "1" },
    { "name": "API_ENDPOINT",      "value": "https://api.MyCompany.example.com" },
    { "name": "INSTALL_TOKEN",     "value": "12345", "saveOnRepair": true }
  ]
}

You can override values at install time on the msiexec command line:

msiexec /i My Application.msi TELEMETRY_ENABLED=0 API_ENDPOINT=https://staging.api.MyCompany.example.com

Example​

Example