When I put pictures into an Outlook HTML email, they are much less quality and significantly larger, even though Outlook reports that they are 100%.

Outlook currenly uses 12 AM to 12 PM for All Day Events. This creates problem when it is for different time zone.

It would be useful to use additional time zone feature in outlook to display local time zone without changing time of operating system. Either you can change all day event to local time zone setting.

One best option to handle with this problem is storing all time zone using UTC(Universal Cordinated Time) so that there is no need for any other time settings and appointment can be rendered using local time zone.

Add another right click option on names in the To field.

You should be able to right click a name in the “To:” field and select “Move to CC” or “Move to BCC”.
PS: Likewise similar options would be useful in the CC and BCC fields.

I cannot do a alt+PrintScreen and paste an image in Outlook even using HTML format.

By playing a sound at the end of the long process, it will alert the user to go back and check on it. We have a rule about this, please refer to Long Process – Do you know how to make long-running processes user-friendly?

Add the status for progress bar, we can clearly see the progress status. We have a rule about this, please refer to Long Process – Do you show the status of progress bar on winform’s title?