Operating Systems
Note: Downloading ISL Light Client or running ISL Light Client Network Start executable will download latest supported version for your operating system.
Microsoft Windows
- Microsoft Windows 11
- Microsoft Windows Server 2022
- Microsoft Windows Server 2019
- Microsoft Windows Server 2016
- Microsoft Windows 10 (32-bit and 64-bit)
- Microsoft Windows 8.1 (32-bit and 64-bit)
- Microsoft Windows Server 2012 R2
- Microsoft Windows 8 (32-bit and 64-bit)
- Microsoft Windows Server 2012
- Microsoft Windows 7 (32-bit and 64-bit)
- Microsoft Windows Server 2008 R2
- Microsoft Windows Server 2008
- Microsoft Windows Vista (32-bit and 64-bit)
- Microsoft Windows Server 2003 R2
- Microsoft Windows Server 2003
- Microsoft Windows XP (32-bit and 64-bit)
Note: ISL Light Client 4.0.5 was the last version to support Microsoft Windows XP, Microsoft Windows Vista and Microsoft Windows Server 2003.
Note: ISL Light Client 3.5.6 was the last version to support Microsoft Windows 2000.
Note: ISL Light Client 3.2.6 for Windows was the last version to support Windows 95, Windows 98, Windows Millennium and Windows NT 4.0.
Mac OS
- macOS 14.X Sonoma
- macOS 13.X Ventura
- macOS 12.X Monterey
- macOS 11.X Big Sur
- macOS 10.15 Catalina
Important: With macOS 10.15 Mojave Apple introduced additional changes to its Security settings which further affect the workflow when running ISL Online applications. Please refer to the following topic for an explanation: ISL Online programs compatibility with macOS 10.15 Catalina
- macOS 10.14 Mojave
Important: With macOS 10.14 Mojave Apple introduced some changes in Security which affect the workflow when running ISL Online applications. Please refer to the following topic for an explanation: ISL Online programs compatibility with macOS 10.14 Mojave
- macOS 10.13 High Sierra
Note: ISL Light 4.4.2031.107 for Mac was the last version to support macOS 10.12 Sierra and below
Note: ISL Light Client 4.0.4 for Mac was the last version to support OS X 10.6 and OS X 10.7.
Note: ISL Light 3.3.2 for Mac was the last version to support OS X 10.5.
Note: ISL Light 3.3.1 for Mac was the last version to support OS X 10.4 and PowerPC Macs.
Linux
- Linux kernel 2.4 and higher (64 bit)
- glibc 2.12 or newer
- systemd
- X Window System
Tested on:
- Ubuntu 16.04, 18.04, 20.04, 22.04
- Debian 9, 10, 11, 12
- CentOS 8
Not supported:
- Wayland
- Linux 32-bit
- arm64 architecture
Note: Linux systems require X Windows System to run ISL Online's applications.
Note: ISL Light Client 4.0.4 for Linux was the last version to support 32-bit kernels.
Note: ISL Light Client 3.3.0 for Linux is the first version to support 64-bit Linux operating systems.
Internet Connection
Bandwidth minimum: 56 Kbps
Supported connection methods (ISL Light can work with any of the following):
- direct outgoing TCP/IP connection to TCP port 7615 on ISL Conference Proxy server
- WININET HTTPS connection to TCP port 443 on ISL Conference Proxy server
- WININET HTTP connection to TCP port 80 on ISL Conference Proxy server
- direct HTTPS connection to TCP port 443 on ISL Conference Proxy server
- direct HTTP connection to TCP port 80 on ISL Conference Proxy server
Timeout for a specific connection method is 20 seconds for connection establishment - so total timeout for connection is less than 1 minute.
Supported network types are the following:
- a computer with a static public IP
- a computer with a dynamic public IP
- a computer in a private network behind a firewall with a public IP performing NAT
- a computer in a private network behind a http proxy offering http and/or https protocols
Web Browsers
- Firefox
- Google Chrome
- Microsoft Edge
- Microsoft Internet Explorer
- Opera
- Safari