If you're scripting a Windows machine setup, AbaClient is one of those apps you want installed silently — no installer wizard, no progress dialogs, no "Next, Next, Finish". Here's how with winget.
Skip to the command
Open Terminal as Administrator and run:
winget install --id Abacus.AbaClient -e --silent --accept-package-agreements --accept-source-agreements
AbaClient: AbaClient allows to log-in into your Abacus Business Software or AbaWeb - without any internet browser and without having java installed.
Typical install time: 10–60 seconds depending on installer size.
What gets installed
| Field | Value |
|---|---|
| Package ID | Abacus.AbaClient |
| Publisher | Abacus Research AG |
| Installer type | Windows Installer (MSI) |
| License | Proprietary |
| Latest version | 4.2.1165 |
| Minimum OS | Windows 10+ |
| Homepage | downloads.abacus.ch |
MSI installers accept /quiet (no UI) and /norestart (skip reboot). winget passes both automatically with --silent.
Per-user install (no admin)
If you don't have admin rights, try per-user scope:
winget install --id Abacus.AbaClient -e --scope user --silent
If the manifest doesn't have a user-scope installer, winget falls back with an error — in that case you genuinely need admin or use the Access denied fix.
Specify a version
To pin a known-good version (useful for reproducible CI / team standardisation):
winget install --id Abacus.AbaClient -e --version 4.2.1165 --silent
List available versions:
winget show --id Abacus.AbaClient --versions
Override silent flags
If winget's --silent doesn't fully suppress the installer's UI, pass native flags via --override:
winget install --id Abacus.AbaClient -e --override "/quiet /norestart"
These are the Windows Installer (MSI)-native silent switches the installer recognises.
Verify after install
winget list --id Abacus.AbaClient
If the version is shown, the install succeeded.
Upgrade silently
winget upgrade --id Abacus.AbaClient -e --silent --accept-package-agreements --accept-source-agreements
Or upgrade as part of a bulk weekly cron — see How to update all Windows apps.
Uninstall silently
winget uninstall --id Abacus.AbaClient --silent --disable-interactivity
Detailed guide: How to uninstall Windows apps with winget.
In a provisioning script
PowerShell snippet for unattended Windows setup:
$apps = @(
"Abacus.AbaClient"
# add more packages here
)
foreach ($id in $apps) {
winget install --id $id -e --silent `
--accept-package-agreements --accept-source-agreements
}Wrap in Task Scheduler for one-shot machine provisioning. See Fresh Windows 11 setup.
Common errors
"AbaClient is already installed" — winget detected the existing install. To force-reinstall over the existing copy:
winget install --id Abacus.AbaClient -e --silent --force
"Installer hash does not match" — Abacus Research AG published a new version before the winget manifest updated. Wait ~24 hours or pass --force. See hash mismatch fix.
"Access denied" / 0x80070005 — run Terminal as Administrator. See Access denied fix.
0x80073D02 — package in use — AbaClient is currently running. Close it then retry. See package in use fix.
See also
- AbaClient on winget.tech → — full package details
- How to install Windows apps with winget → — beginner guide
- Winget commands cheatsheet → — complete reference
- Fresh Windows 11 setup → — full machine workflow