AbaClient 4.3.1194

AbaClient allows to log-in into your Abacus Business Software or AbaWeb - without any internet browser and without having java installed.

  • By Abacus Research AG
  • Proprietary
  • Updated Jul 17, 2026
Download for Windows

About AbaClient

AbaClient combines a Java environment controlled by Abacus with a browser tailored to Abacus needs. The Java environment is based on the open source project OpenJDK which does not cause any Oracle dependencies. The browser allows the use of and for Abacus generated certificates without warning messages.
AbaClient recognises and supports the new "abalink" format, which will be used from Abacus version 2019.
AbaClient also serves as a replacement for the product AbaStart.

What's new in 4.3.1194

Fixed bugs:

  • Links with mailto:, tel: and callto: are now opening correctly again
  • Opening AbaClients with start parameters is working correctly again
  • Various other bug fixes and stability improvements

Technical details

PublisherAbacus Research AG
Version4.3.1194
Release date2026-07-17
LicenseProprietary
Installer typewix
Architecturex64
Package IDAbacus.AbaClient

Install AbaClient from the command line

Install with Windows Package Manager
winget install --id=Abacus.AbaClient -e
Update to the latest version
winget upgrade --id=Abacus.AbaClient -e
Uninstall
winget uninstall --id=Abacus.AbaClient -e
Silent install with the offline installer
msiexec /i "abaclient-4.3.1194-en.msi" /quiet /norestart

AbaClient version history

  • 4.2.1165
  • 4.0.1124
  • 3.3.1039
  • 3.2.996
  • 2.4.779
  • 2.3.730
  • 2.1.600

Frequently asked questions

Is AbaClient free?

AbaClient is proprietary software from Abacus Research AG. Check the publisher's license terms for pricing and usage rights.

What is the latest version of AbaClient?

The latest version is 4.3.1194, released on Jul 17, 2026.

Is it safe to download AbaClient?

The download button links to the official installer published on storage.googleapis.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with d42ab865c40f8bfa7ba3432ebe09d0ed8421932003e0dc9de4a625c8a02d2af7.

Which Windows versions does AbaClient support?

AbaClient runs on Windows and is available for 64-bit (x64) systems.

How do I install AbaClient silently?

Run the offline installer with msiexec /i "abaclient-4.3.1194-en.msi" /quiet /norestart, or install it with Windows Package Manager: winget install --id=Abacus.AbaClient -e --silent.

How do I uninstall AbaClient?

Open Settings › Apps › Installed apps, find AbaClient and select Uninstall. From the command line, run winget uninstall --id=Abacus.AbaClient -e.

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