64 bit microsoft professional plus and activex tree view control

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MS-Access

i want to use Microsoft tree view control so i had to add mscomctrl.ocx
to my project as a reference
and because iam working on windows 7 64 bit and the mscomctrl.ocx has 32 bit controls i registered it in the command prompt
my problem is even though i add this ocx as reference
and i can use the following statement
Dim x As MSComctlLib.TreeView (so the library is added correctly)
i cant see windows tree view control in design mode ?
what should ido?
note i tried the solution from options->Trust Center->Trust Center Settings ->Activex Settings ->Enable All Controls