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extensionAlternateVersionsArray.prefer.comAddin object

Specifies a COM or VSTO add-in that must be used in place of the Microsoft 365 Web Add-in for Windows.

Properties that reference this object type:

Syntax

{
 "progId": "{string}"
}

Properties

progId

Specifies the name of either a COM or VSTO add-in which is to be used in place of the web add-in when both are installed on a Windows computer.

Type
string

Required
✅

Constraints
Maximum string length: 64.

Supported values

Remarks

The term "progId" is usually associated with only COM add-ins, but in the manifest its value can be the name of a VSTO add-in.

Examples

{
 "alternates": [
 {
 "prefer": {
 "comAddin": {
 "progId": "ContosoExtension"
 }
 }
 }
 ]
}

See also

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