Log in as eccet with password eccet.

Use Ctrl+Alt to get back to your windows desktop.

Select "Run command" from your start menu.

Enter \\Eccet\ to call up the eccet share.
A file browser similar to the one shown on the left should appear.
Navigate into the "home" directory shown.

Copy the license file into this folder from the EMail you received or from a folder you have stored it to.

Click the vmware window to get back to the Eccet Installation.

Continue in the same way as you would when importing a license file via the internet.