If the einstaller.exe agent is launched on a workstation with the Microsoft Windows NT//XP/Vista operating
system:
1. einstaller.exe contacts ERAS on TCP port and adopts the user name and password defined in ERA either
during installation, or using the Logon...button .
. is the signal for ERAS to send the corresponding install package via admin$.
. The waiting einstaller.exe collects the package and starts the installation under the defined account, applying
the associated .xml configuration and command line parameters.
If the user rights are insucient, or the user name and password is entered incorrectly, einstaller.exe tries to
perform the installation under a current user provided it has administrator rights. The corresponding install
package is downloaded directly by einstaller.exe on TCP/IP port .
On Microsoft Windows //Me operating systems, where there is no account hierarchy, install packages are
downloaded by einstaller.exe skipping the authentication process and installed under a current user.
. Avoiding repeated installations
Immediately after the agent successfully completes the remote installation process, it marks the remote client with
a “flag” prohibiting repeated installations of the same install package. The flag is written to the following registry
key:
HKEY_LOCAL_MACHINE\Software\Eset\Eset Remote Installer
If the Type and Name of the package defined in the einstaller.exe agent matches the data in the registry, no
installation is performed. This process prevents repeated installations to target workstations if the einstaller.exe
agent is launched repeatedly,
The ERA Server provides an additional level of protection against repeated installations. It is performed at the
moment when the installer establishes backward connection to ERAS TCP . If there is an error message
related to the workstation, or the installation has been successfully completed, any additional installation attempts
are denied.
The agent records the following error to the installer log located in %TEMP%\einstaller.log:
Status 20001: ESET Installer was told to quit by the server ‘X:2224’.
To prevent repeated installations from being denied by ERAS, related entries on the Remote Install tab must be
removed. To delete such entries, rightclick and select the Clear option from the context menu.
. Installation process error messages
During remote installations, errors may occur in two scenarios:
• When delivering the einstaller.exe agent to a remote workstation
• When launching the service einstaller.exe, i.e., during the installation itself
During a remote installation i.e., push install, the einstaller.exe agent may display an error message consisting of
the SC and GLE code. For example:
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