UpdateAddIns Method
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AddInStore.UpdateAddIns Method (String)


Updates the add-in cache and includes new add-ins at a specified location.

Namespace:   System.AddIn.Hosting
Assembly:  System.AddIn (in System.AddIn.dll)

public static string[] UpdateAddIns(
	string addInsFolderPath


Type: System.String

The path of the directory that contains one or more subdirectories of add-ins.

Return Value

Type: System.String[]

A collection of strings that describe warnings as the pipeline segments are evaluated.

Exception Condition

A segment directory is missing from the pipeline directory structure.


There is an access violation to the pipeline directory structure.


addInsFolderPath is null.


Caller does not have both read and write access permissions to the location that is specified by addInsFolderPath.

Call this method if your add-ins are outside the pipeline directory structure.

If no new add-ins are installed, this method just validates the cache.


for the ability to read and update the add-in folder. Associated enumerations: FileIOPermissionAccess.Read, FileIOPermissionAccess.Write. Security action: Demand.

.NET Framework
Available since 3.5
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