Step 1: Open Windows Live Mail.
Step 2: Select the Calendar folder.
Step 3: Click the Share and select your Windows Live account.
Step 4: You will be given the option to share or not to share the calendar, select Share this calendar and click Save.
Step 5: Place a check mark in Send people a view-only link to your calendar and click Save.
Step 6: Click Get your calendar links (This will also save your settings) and click OK in the warning window that opens.
Step 7: A window will open with a link that you can email to those people who you want to be able to view your calendar or import your calendar data.