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AddInStore.FindAddIns Method (Type, PipelineStoreLocation, String[])

Finds all add-ins for a specified host view of the add-in at the location specified by a PipelineStoreLocation value and an optional add-ins folder.

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

public static Collection<AddInToken> FindAddIns(
	Type hostViewOfAddIn,
	PipelineStoreLocation location,
	params string[] addInFolderPaths


Type: System.Type
The type that defines the host's view of the add-in.
Type: System.AddIn.Hosting.PipelineStoreLocation
One of the enumeration values.
Currently the only value in this enumeration is the directory specified by the AppDomainSetup.ApplicationBase property that was used to set up the host's application domain.
Type: System.String[]
(Optional). The path of the directory that contains one or more subdirectories of add-ins. Because this parameter takes an array of strings, you can specify more than one path.
This parameter is not required if your add-ins are located in the pipeline directory structure under the AddIns folder.

Return Value

Type: System.Collections.ObjectModel.Collection<AddInToken>
A collection of tokens that represent the add-ins that were found.


There is an access violation to the pipeline directory structure.


location is an invalid PipelineStoreLocation value.

Use this method overload to enable a partially trusted host, which may not have path discovery permission to discover its own location, to find add-ins in its own directory.

.NET Framework

Supported in: 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.