@ Nicole54
Why do you welcome users that are regular members since a long time on your first day ?
The rest of your post shows that you do not have the slightest idea of what this post is about - so why do you answer ?
@Balubeto
The VDDK is intended as a toolkit for developers of backup software for ESXi - I doubt that typical WS-users needs are high on their priority-list.
The vmware-vdiskmanager is included in Workstation - though I believe that at least the -R function is broken.
If you are looking for vmware-mount.exe download earlier versions of the VDDK - note that the latest 5.1 version was broken so I think you need the second last of 5.1