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Software downloads.

TFCompanion installers, updater files, spectrometer drivers and installation instructions. For manuals, API documents and technical notes, use Resource Downloads.

TFCompanion™ software

Separate installers are provided for MProbe® systems, standalone analysis, and versions integrated with third-party spectrometers. Choose the one that matches your setup. To evaluate the software before purchasing, request an evaluation key through the contact form.

Latest update: TFCompanion 6.7.2, build 110226 — November 2, 2026. See the release highlights, release notes (PDF), and server startup guide (PDF).

For the CalculationServer 1.7.3 fixes, install the matching CalculationServer.jar separately on the server and Java clients.

TFCompanion for MProbe (64-bit)For all MProbe system models. Release June 2026, ver. 6.6. TFCompanion standalone (Windows 64-bit only)Data analysis of reflectance, transmittance and ellipsometry data. No data acquisition or hardware integration. TFCUpdater (64-bit)Updates TFCompanion. Only needed when updating from a version before 4.5. TFCUpdater (32-bit)32-bit version of the TFCompanion updater. Software update fileManual update for computers without internet access. Recommended: update from Help → Check update inside TFCompanion.

Third-party spectrometer integration

TFCompanion can work with several commercial off-the-shelf spectrometers. Choose the installer matching your hardware.

TFCompanion for Ocean Optics (64-bit)Compatible with all Ocean Optics USB spectrometers. TFCompanion for Ocean Optics (32-bit)32-bit build for Ocean Optics USB spectrometers. TFCompanion for StellarNet (32-bit)Compatible with StellarNet USB spectrometers. USB drivers for Semiconsoft spectrometersFor SpectrometerClient or your own software. Already included in the TFCompanion installer. Spectrometer Client softwareFor testing Semiconsoft spectrometers. Windows 7/10, 64-bit.

Installation instructions

Use these documents when installing TFCompanion, requesting an evaluation license, updating older versions, or installing spectrometer USB drivers.

Installation instructionsStep-by-step TFCompanion installation guide (PDF). Evaluation instructionsHow to request and install an evaluation license (PDF). Legacy TFCompanion update instructions (2009 edition)Original guide to TFUpdater, manual updates, version backup and restore for older TFCompanion versions. Update instructions to ver. 4.5Guidance for updating from earlier versions (PDF). USB driver installationInstructions for installing spectrometer USB drivers (PDF).

Need manuals or technical notes?

MProbe manuals, Modbus API documentation, import guides, FFT notes and calibration resources are on the Resource Downloads page.

Resource Downloads

Software documentation