Symbolic links not showing in explorer

Running Windows 7 Enterprise 64 bit. Two disks in computer (lenovo laptop) second disk (D) is dynamic. We create symlinks using mlink. We create links on D:\. An example is:
mklink /D "S:\DriverAPI.Duplex" "%GBROOT%\DriverAPI\Duplex\bin\main\debug"
mklink /D "T:\DriverAPI.JTalk" "%GBROOT%\DriverAPI\JTalk\sw\main\Data"
So we get two new drives T and S. When we did the same thing on Win XP we could open the Explorer and the new drives showed. Now on Win7 they do not show in the Explorer. Not even when we run the Explorer as an administrator. The links are there eventhough they are not visible in the Explorer. We can see them in another software that uses the S and T drives. It is the windows applications that can't see them. Any suggestions on how to get them to show in the Explorer?

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