It happens sometimes that certain Antivirus applications recognize Imagicle Attendant Console as a foreign, untrusted application, thus avoiding the installation and automatically deleting the relevant executable.
In this case, the solution is to configure the Antivirus to exclude Attendant Console client from the list of monitored folders or to add it in the list of trusted applications.
Typically, Imagicle Attendant Console is installed in this folder: C:\Program Files (x86)\Imagicle Attendant Console unless a different path is specified during setup wizard.