ITypeLib->GetLibAttr & TLIBATTR structure

[gringoloco023]

In addition to yesterdays tread about 'Playing with COM', I am hoping to get some help.

I'm trying to get the TLIBATTR structure by loading a dll. I'm able to get the GUID but non of the other members.
There must be something wrong with the way I allocate the TLIBATTR structure ?

PHP Code:

!define COM_CallMethod "!insertmacro _COM_CallMethod "
!macro _COM_CallMethod _vto _ParamsDecl _IFacePtr _Params
    System::Call `${_IFacePtr}->${_vto}${_ParamsDecl} ${_Params}`
!macroend

!define ITypeLib->GetLibAttr "${COM_CallMethod}7 (i)i. "
!define ITypeLib->ReleaseTLibAttr "${COM_CallMethod}12 ()i. "

Section
    StrCpy $0 msxml.dll
    System::Call Oleaut32::LoadTypeLib(wr0,*i.r1)

    System::call *(g,i,i,i,i,i)i.R0 ;  TLIBATTR  structure
    ${ITypeLib->GetLibAttr} $1 (R0)

    System::Call *$R0(g.R1,i.R2,i.R3,i.R4,i.R5,i.R6)
    ${ITypeLib->ReleaseTLibAttr} $1 ()
    System::free $R0

    DetailPrint 'TLIBATTR structure'
    DetailPrint GUID=$R1
    DetailPrint CLID=$R2
    DetailPrint SYSKIND=$R3
    DetailPrint MajorVerNum=$R4
    DetailPrint MinorVerNum=$R5
    DetailPrint LibFlags=$R6
SectionEnd 


Or use the attached file for a complete test script.