Mulberry is not registered as default e-mail client

[petzi]

Using Windows Vista 64 bit Edition, each time I launch Mulberry, I am asked whether I want to make Mulberry the default e-mail client. I click "yes". Then I am asked if I want to make Mulberry my default web calender client. I click yes again. This repeats every time the program is launched.

My guess is, that the way Windows registers the default programs has changed, and Mulberry does not know about it. I believe, but can not confirm, that this is common to all versions of Vista.