Port 80 Availability Check

Checks that Port 80 is available for use.

Autodesk Vault Server needs port 80 to be free for successful installation and operation. If this check fails, another application is using port 80.

From the Windows Start menu, select Run.
In the Run dialog box, enter: cmd.
Click OK.
In the command window, enter: netstat -ano
A list of active connections is displayed. Locate the active connection that is using local address 0.0.0.0:80 and note the process ID (pid) number. For example:

<table cellpadding="0" cellspacing="0" class="not-ruled"><colgroup><col> <col> <col> <col> <col> </colgroup><tbody><tr class="not-ruled-odd-row"><td class="table-body">Proto</td><td class="table-body">Local Address</td><td class="table-body">Foreign Address</td><td class="table-body">State</td><td class="table-body">pid</td></tr><tr class="not-ruled-even-row"><td class="table-body">TCP</td><td class="table-body"><a name="OL_895F3ACC844F4786A7EE79D3ED4F04E9"></a><ol type="1" start="1"><li>0.0.0:80</li></ol></td><td class="table-body"><a name="OL_186E8FBD8D4846DFB8BAFA378596AD3E"></a><ol type="1" start="1"><li>0.0.0:0</li></ol></td><td class="table-body">LISTENING</td><td class="table-body">1924</td></tr></tbody></table>

Start Windows Task Manager and select the Processes tab.
If the pid column is not displayed, from the View menu, select Select Columns. In the Select Columns dialog, turn on the pid (process-identifier) check box and then click OK.
Locate the process matching the pid that is using 0.0.0.0:80.
Make sure that it is safe to shut down the process and then shut it down.