WLAN Network Controller and Tray Applet continuously writing to disk

Writing to your hard disk?  What makes you think that?

If I pull up the Task Manager and sort processes on "I/O Writes" then these two WLAN processes consistently have more I/O Writes than any other process.  At the end of a work day, they have more I/O Writes than Symantec anti-virus.

I/O writes does not equate to hard drive writes

the Ethernet port is an I/O as is the wireless connection

I do not understand your statements.  I am not complaining about any processes relating to my Ethernet ports.  I am complaining about the I/O Writes by the following two processes: 1) "DW WLAN Card Wireless Network Controller" and 2) "DW WLAN Card Wireless Network Tray Applet".  My wireless switch is set to "Off" on the side of the laptop.  If I use the "DW WLAN Card Utility", it acknowledges the Radio is disabled and the WLAN Utility will not allow me to perform any diagnostics on the WLAN Card (rightfully so, because the WLAN card is off).  So why are these two WLAN processes performing any I/O Writes at all?  My laptop has been on for five hours today and each of these two processes show 203,189 "Writes".  Why are they doing anything at all when the Wireless Card is disabled?

I do not understand your statements.  I am not complaining about any processes relating to my Ethernet ports.  I am complaining about the I/O Writes by the following two processes: 1) "DW WLAN Card Wireless Network Controller" and 2) "DW WLAN Card Wireless Network Tray Applet".  My wireless switch is set to "Off" on the side of the laptop.  If I use the "DW WLAN Card Utility", it acknowledges the Radio is disabled and the WLAN Utility will not allow me to perform any diagnostics on the WLAN Card (rightfully so, because the WLAN card is off).  So why are these two WLAN processes performing any I/O Writes at all?  My laptop has been on for five hours today and each of these two processes show 203,189 "Writes".  Why are they doing anything at all when the Wireless Card is disabled?

I am not understanding why you are thinking those are writes to the hard disk????

I believe these processes are writing to my hard disk for two reasons: 1) What else would they be writing to? and 2) My hard disk drive write indicator LED is showing constant traffic when I have no other applications running.

I believe these processes are writing to my hard disk for two reasons: 1) What else would they be writing to? and 2) My hard disk drive write indicator LED is showing constant traffic when I have no other applications running.

You should take a look at all the services that run in the background by using Task Manager.

I think you are fixating on a problem that does not exist.