You can access MyLab, a virtual DMACC PC, by going to

Option 1:  You can install the VMware Horizon View Client by choosing the left image. This will take you to a VMware download page where you can choose the Horizon Client that matches your OS.

Option 2 (Recommended):  You can also choose the VMware Horizon View HTML Access option which uses your web browser to access MyLab. Click the following link to bypass option one and continue to the HTML Access

Use your usual username and password to sign in, make sure the domain reads "DMACC".  If you receive a "Security Certificate" message, choose the option to "Continue to the Website" to gain access.

After signing in, you will see a list of virtual machines that you can connect to. Simply click one of them to connect to that virtual machine.