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How do I install cURL on Windows Server 2016 ?

1712  Computer and network settings, Troubleshooting

Office Maker and BiblioMaker feature an automatic update mechanism. With versions 7.3 and higher, the update download uses the open source cURL library, installed by default on Windows Server 2019 and higher. However, if your server is running Windows Server 2016, our software updates will fail if cURL is not installed.

Check that cURL is installed: the software's default location is as follows: C:\Windows\System32\curl.exe. If you can't find it there, you can search for it in File Explorer. If it can't be found, read on.

Here's how to install cURL on your server:

  1. Download cURL under https://curl.se/windows/ (to be on the safe side, don't download it from another website).
  2. Extract the Curl.exe executable from the downloaded ZIP file, usually located in the bin folder.
  3. Place the Curl.exe file in a folder of its own, such as C:\Program files\curl\ or C:\curl\.
  4. To run cURL from the command prompt without having to systematically specify its location on disk, you'll need to specify the software's location: Enter "environment" in the search bar of the taskbar or in the Start/Windows menu, then select Edit the system environment variables.
    Click on the Environment variables button. In the lower part of the window, select the "Path" line, then click on the Edit button.
    To the right of the list of environment variables, click on the Browse... button and select the folder containing the curl.exe software. The path to this folder is added to the list.
  5. If the command prompt was open, you'll need to restart it for the new settings to take effect.
  6. To check that the new settings have been taken into account, open the command prompt and enter the following command:
    curl -V
    You should obtain various information, in particular the cURL software version. If you get an error message, repeat step 4.

Note: we recommend that you plan a server migration towards Windows Server 2019 or higher. Support for version 2016 ended in summer 2022, while extended support ends in January 2027.
How do I install cURL on Windows Server 2016 ?