Software package to operate Thorlabs' S4FC fiber-coupled laser sources, including a GUI, drivers, and LabVIEW/C++ SDK for secondary development.
Publisher’s description
What is S4FC?
S4FC is a proprietary program for Windows from THORLABS Inc..
Installation and requirements
Official installers exist for 32-bit as EXE (NSIS). The main installer is 6.1 MB. Installation asks for administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 2.0.2, released on January 9, 2026. 2 versions are listed since June 19, 2019, each with links to its own installer files. That is about 0.3 releases a year.
Pros / Cons
Pros
- Documented silent install
- Small download (6.1 MB)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
In short: S4FC is a Windows tool for 32-bit PCs. Administrators can deploy it unattended.
Is S4FC safe to download?
- The file is served by thin01mstroc282prod.dxcloud.episerver.net; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
5197D974EB71B3B6B0503558E670364E130FDF062CFDDE350496ED67D35A0758· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›2 versions over 7 years · about 0.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2.0.2Latest | January 9, 2026 | 6.1 MB | 32-bit ZIP |
| 2.0.1 | June 19, 2019 | — | 32-bit ZIP |
Install from the command line
Silent install ›winget install --id Thorlabs.S4FC -es4fc_v2.0.2_setup.zip /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- THORLABS Inc.
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (NSIS)
- Version
- 2.0.2
- Released
- January 9, 2026
- Added to the catalogue
- June 18, 2025
- Versions listed
- 2
- Updates / year
- 0.3
- Website
- thorlabs.com
- winget ID
- Thorlabs.S4FC
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is S4FC free?
S4FC is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is S4FC safe to download?
The download comes from thin01mstroc282prod.dxcloud.episerver.net; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install S4FC with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can S4FC be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does S4FC run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of S4FC?
The versions page lists all 2 versions with links to their official installer files, back to June 19, 2019.