UPnPService InvokeAction

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C#

Hello

I'm trying to Invoke a UPnPService:

string result = string.Empty;
object[] vInActionArgs = new object[2];
vInActionArgs[0] = "1";
vInActionArgs[1] = "BrowseMetadata";
object vOutActionArgs = null;
_service.InvokeAction("Browse", vInActionArgs, ref vOutActionArgs);

I have the Action-Table copied from Intel Device Spy:

Action name	Browse
Argument 1	(string) ObjectID
Argument 1 ASV	A_ARG_TYPE_ObjectID
Argument 10	(ui4) UpdateID
Argument 10 ASV	A_ARG_TYPE_UpdateID
Argument 2	(string) BrowseFlag
Argument 2 ASV	A_ARG_TYPE_BrowseFlag
Argument 3	(string) Filter
Argument 3 ASV	A_ARG_TYPE_Filter
Argument 4	(ui4) StartingIndex
Argument 4 ASV	A_ARG_TYPE_Index
Argument 5	(ui4) RequestedCount
Argument 5 ASV	A_ARG_TYPE_Count
Argument 6	(string) SortCriteria
Argument 6 ASV	A_ARG_TYPE_SortCriteria
Argument 7	(string) Result
Argument 7 ASV	A_ARG_TYPE_Result
Argument 8	(ui4) NumberReturned
Argument 8 ASV	A_ARG_TYPE_Count
Argument 9	(ui4) TotalMatches
Argument 9 ASV	A_ARG_TYPE_Count
Return argument	<none>

I always get the folloing exception:
A user-supplied component or subscriber raised an exception (Exception from HRESULT: 0x80040208)

I think I parse the inArgs wrong, but how I have to do it right?

Thanks for help :)