Help with InvokeMethod_ParameterArray

Hi to all... I am new of this (very good) product.. I am testing it and I have a big problem... One of my Soap Call have 18 parameters. i have try to work around but always I receive an reeorr message telling me tha ole returned an error Method not found".... Thinking that is my poor knowledge the reason of thi error I have make a test.

I have a method with ony 7 parameters...
the proxy expose this method by this way

************************************************************************
*  signP7M
****************************************FUNCTION signP7M(signatureCred as RemoteSignatureCredentials,content as ByteArray,contentInAttachments as Boolean,p7m as Boolean,digestType as String,X509certificate as ByteArray,flags as SignatureFlags) as ByteArrayLOCAL loException as Exception, lvResult as ByteArrayTHIS.lError = .F.this.cErrorMsg = ""

lvResult = .F.
TRY
	lvResult = this.oBridge.InvokeMethod(this.oService, "signP7M", signatureCred,CREATEBINARY(content),contentInAttachments,p7m,digestType,CREATEBINARY(X509certificate),flags)CATCHto loExceptionTHIS.GetErrorDetail(loException)ENDTRYRETURN lvResultENDFUNC*   signP7M

and I can call correctly this method from my program with a function call like:

loService = CREATEOBJECT("RemoteSignatureServiceProxy","V2")
cStrFileSign = loService.SignP7M(Loinst,cStrFile,.f.,.f.,"SHA256",xcert,loSignFlag)

The Method return a file signed by an HSM

So i Try to call the funcion with InvokeMethod_ParameterArray by this way

loArr1 = oBridge.CreateArray("System.Object")
loArr1.Additem(loInst)
loArr1.AddItem(cstrfile)
loArr1.AddItem(.f.)
loArr1.AddItem(.f.)
loArr1.AddItem("SHA256")
loArr1.AddItem(xcert)
loArr1.AddItem(loSignFlag)

InstSign=oBridge.CreateInstance("RemoteSign.RemoteSignatureService")cStrFileSign1=oBridge.InvokeMethod_ParameterArray(loInstSign, "SignP7M",loArr1)

And I have error method RemoteSign.Remotesignatureservice.signp7m not found ... I think that would be a my error so I create a new function derivated from old signP7m directly in proxy source

************************************************************************
*  signP7M_Array
****************************************FUNCTION signP7M_Array(aParam as Westwind.WebConnection.ComArray) as ByteArrayLOCAL loException as Exception, lvResult as ByteArrayTHIS.lError = .F.this.cErrorMsg = ""

lvResult = .F.
TRY
	lvResult = this.oBridge.InvokeMethod_ParameterArray(this.oService, "signP7M", aParam)CATCHto loExceptionTHIS.GetErrorDetail(loException)ENDTRYRETURN lvResultENDFUNC

To be sure that all object are been instanted correctly

By this way I can call the method directly by this way

loArr1 = oBridge.CreateArray("System.Object")
loArr1.Additem(loInst)
loArr1.AddItem(cstrfile)
loArr1.AddItem(.f.)
loArr1.AddItem(.f.)
loArr1.AddItem("SHA256")
loArr1.AddItem(xcert)
loArr1.AddItem(loSignFlag)

loService = CREATEOBJECT("RemoteSignatureServiceProxy","V2")
cStrToFile = loService.SignP7M_Array(loArr1)

and I unfortunately receive again method RemoteSign.Remotesignatureservice.signp7m not found

Please someone can help me to understand where is the ploblem?

Many thank for your help ant sorry for my poor english

Flavio