That error has nothing to do with COM+. aTest isn't defined in your code. You need to have that property somewhere...

+++ Rick ---

>>>Direct Array parameters don't work well over COM because VFP formats these things in ways that are difficult for COM to handle. However, you can wrap arrays into properties of objects and pass them around pretty easily that way... <<
>
>Hi Rick!
>
>That's the approach I tried, My COM+ code was ;
>
>DEFINE CLASS ObjectTest AS Session OLEPUBLIC
> FUNCTION PopObject( oLink AS Object) AS Object
> LOCAL lnResult,loMtx,loContext
> *) Create a reference to MTS
> loMtx=CREATEOBJECT("MTXAS.AppServer.1")
> *) Create a reference to the Context object?????
> loContext=loMtx.GetObjectContext()
>
> oLink.AddProperty("TestProperty")
> oLink.TestProperty="My Test Value"
> oLink.nValue=ALEN(oLink.aTest) && Property created in calling prog
> DIMENSION oLink.aTest[5]
> FOR lnk=1 TO 5
> oLink.aTest[lnk]=CHR(64+lnk)
> ENDFOR
>
> *) Commit the transaction & tell MTS we are done (like a kipper)
> loContext.SetComplete()
>
> RETURN oLink
> ENDFUNC
>ENDDEFINE
>
>Then My Test Prog is ;
>oTest=CREATEOBJECT("ComPlus.ObjectTest")
>oMyObject=CREATEOBJECT("Custom")
>oMyObject.AddProperty("nValue")
>oMyObject.nValue=999
>oMyObject.AddProperty("aTest[1,1]")
>DIMENSION oMyObject.aTest[2]
>oMyObject.aTest[1]="Z"
>oMyObject.aTest[2]="Z"
>oMyObject=oTest.PopObject(@oMyObject)
>FOR lnk=1 TO ALEN(oMyObject.aTest)
> ?lnk, oMyObject.aTest[lnk]
>ENDFOR
>
>When I Build an MT DLL and run my Test I get a OLE iDispath error on the line
> oLink.nValue=ALEN(oLink.aTest)
>"Data type mismatch", if I remove that line then I get a OLE iDispatch error on the line
> DIMENSION oLink.aTest[5]
>"Property aTest not found".
>
>What am I doing wrong?
>
>I also have a follow up question! With DCOM I used CreateObjectEX() so that I could create instances of my data object from any one of 10 data servers (accross a WAN). How does COM+ know which server I want? As I understand it I only issue a CreateObject() and COM+ does the rest, but if I have one object with 10 possible locations how do I direct it??
>
>
>Gary.