Reboot after install every time

I really love SmartFTP but what is really annoying is that when installing the latest build SmartFTP always asks for a system reboot. Why is this and can't you guys build the product so that updates can be installed without reboot?

Also I have an issue that build .16 does not delete some folders on the server. Not sure why, I had to get my provider to delete the folder. Will try .17.