Adding a WinForm control to a Word Document using VSTO -

i'd add labels word document, in margin. i've seen things date pickers , combo boxes can added document, can't see i'm after.

i can controlcollection object via:

globals.factory.getvstoobject(myapplication.activedocument).controls 

but there no methods adding labels.

are there alternative methods adding labels document using vsto?

[edit]

so managed insert winform labels, extremely slow, confirmed in post:

http://connect.microsoft.com/visualstudio/feedback/details/277090/adding-winform-controls-to-a-vsto-word-document-is-extremely-slow

so i'm still looking alternatives. cannot find label-like contentcontrols suggested in thread above.

so solution settled on use word shapes. snippet of code below shows how add label shape document.

shape shape =     doc.shapes.addlabel(office.msotextorientation.msotextorientationhorizontal,                                                                          left,                                                                           top,                                                                         width,                                                                        height,                                                                         range); 

the process of adding multiple labels no means lightning fast, faster adding winform controls document. shapes give flexibility place wherever want on page too, contentcontrols not offer.