Silent: displays no windows or dialog. Unattended: requires no user interaction. You can do this, e.g., with an MSI:
msiexec.exe /X {GUID} /QN
or sometimes with a switch:
uninstall.exe /s or uninstall.exe /q
ZD uses MSIs now, so you can do a silent uninstallation as described above; however, ZD 1.0 is a custom EXE. There is an uninstall.exe in %LOCALAPPDATA%\Zimbra\zdesktop, but I haven't been able to find a way to make this silent or unattended.
I didn't know if maybe there was a custom switch (e.g., Google Chrome is one I can think of off the top my head) hidden in there somewhere, or if you have to manually run uninstall.exe and click through all of the dialog boxes. |