Batch file or utility to switch default between OL and OE?

[Ian R]

Hi

I use both OL and Outlook Express(OE) for a variety of reasons.

I frequently need to switch the default email client due to the synch
requirements of my PDA/Mobile Phone.

I know its only a few clicks but its a pain to have to keep going to
Internet Properties to switch.

Is there a batch file or utility which will toggle between them with a
single click?

Thanks for any info

Ian