When you use the Event Viewer (Eventvwr.msc) to view an event detail, you can copy the event to the clipboard by pressing the (Copy to Clipboard) icon on the Event Properties Event tab.

Here is a sample event I pasted:

Event Type: Success Audit
Event Source: Security
Event Category: System Event
Event ID: 515
Date: 02/22/2004
Time: 06:37:30
User: NT AUTHORITY\SYSTEM
Computer:
Description:
A trusted logon process has registered with the Local Security Authority. This logon process will be trusted to submit logon requests.

     Logon Process Name: KSecDD

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.