Hi Elca,
Unfortunately you have found one of the down sides of annotating the Expert Explain files. In the program directory of Sniffer you will find a file call xphelp.hlp. This contains all of the expert help details. Any annotations will be added to this file. You can back this up or share it with other people. However, when newer versions of Sniffer come out, this file will be overwritten and you will lose the annotations. If you overwrite the newer help file you will overwrite the newer .hlp file with an older one it will still work, however should it contain additional experts you will not find them.
Spence P
Axial Systems