Thank you very much for your reply. I haven’t tried from a server OS yet, right now i only have access to my client computer but I will be sure to try it from a server OS as fast as I can.
Reading the help now I see this, Does this means that the vhd-file gets “mounted” every time, and actually it is my localcomputer that is the “target” computer?
Specifies the path to an offline VHD. The path can either point to a VHD file, or to a location on which the VHD is already mounted by using Deployment Image Servicing and Management (DISM) tools.
The VHD can be on a local disk on the target computer, or on a network shared folder. If the VHD is in a network shared folder, then the value of this parameter is a UNC path to the VHD. In this case, the computer account of the computer that you are using to mount the VHD must have read and write permissions (Read/Write permissions in the File Sharing dialog box, or Full Control on the Security tab of the folder Properties dialog box) on the shared folder, or the VHD will not be accessible. Local loopback UNC paths are not supported. Use either of the following formats for the computer account: DOMAIN\SERVERNAME$ or SERVERNAME$.
Add the ComputerName parameter to specify the target computer you want to use to mount the VHD. If the ComputerName parameter is not specified, then the local computer is used. The computer that you are using to mount the VHD must be running Windows Server 2012 R2. Any local path, such as D:\myFolder, that is specified by using this parameter is always relative to the target computer.