The dialog for asking the feedback will only apperar for the first time you use synctoy after the new installation. After that it should not. Did you still see it?
Yes ... you have rigth. but i want to deploy the software on 100 to 150 PCs. And i don´t want that every employee read the message and click yes or no.
Set CustomerFeedback (REG_DWORD) at HKEY_CURRENT_USER\Software\Microsoft\SyncToy in the registry to 0. You can deploy this either via a reg file, or a Group Policy Preference.
To create a reg file for this, open Notepad and copy and paste this: ___________ Windows Registry Editor Version 5.00
Save this file as "DisableCustFeedback.reg" (or whatever name you want as long as you keep the .reg extension). This should help you disable this prompt for each user.