When installing ProMo+ using the Setup program, the file which stored the shortcuts path for the online update was wrong. The result was that when you updated ProMo+ online, without the Setup program, the shortcuts in the start menu sometimes disappeared or pointed out wrong locations. If you want to avoid this, you need to reinstall ProMo+ with the new installer using usual link: http://www.iaes-software.com/downloads/Setup_PM_4_Beta.exe (beta) or http://www.iaes-software.com/downloads/Setup_PM_4.exe (official)
When the application was published from a 64 bits computer, it was possible to install it on 32 bits clients too but as soon as it was started, you got a message saying that the application was corrupted.