Refprop 91 Install

Here’s a helpful feature for installing REFPROP 9.1 (assuming you meant version 9.1, since REFPROP 10.x is more common now — but if you meant NIST REFPROP 9.1, the following applies):

Step-by-Step REFPROP 9.1 Installation Guide

Now, let’s walk through the actual refprop 91 install process. I will assume you have a legitimate installer named something like REFPROP91_setup.exe.

Error 1: “The setup files are corrupted. Please obtain a new copy of the program.”

Cause: The installer was partially downloaded or modified.
Solution: Obtain a fresh copy from your original backup or a trusted source. Compare the MD5 checksum with NIST’s archive if available. refprop 91 install

Common Installation Errors & Fixes

| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | “Setup cannot find REFPROP.lic” | License file is corrupted or not on accessible media. | Copy the .lic file to your Desktop, then browse to it during install. | | “Component MSCOMCTL.OCX not registered” | Missing common controls library. | Run Command Prompt as Admin and type: regsvr32 C:\Windows\SysWOW64\MSCOMCTL.OCX | | “Error 1935 during installation” | .NET Framework or VC++ runtime corruption. | Run Windows Update, then reinstall VC++ 2010 Redistributable. | | “Run-time error ‘53’: File not found” | Incorrect RPPROG environment variable. | Manually set the environment variable as shown in Step 4. |

Uninstalling and Reinstalling REFPROP 9.1

If you need to perform a clean refprop 91 install because the first attempt failed: Here’s a helpful feature for installing REFPROP 9

1. Uninstall via Control Panel > Programs and Features.
2. Delete the leftover folder: C:\Program Files (x86)\REFPROP.
3. Delete registry keys (optional but thorough): Open regedit and search for “REFPROP” – delete relevant keys under HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\NIST.
4. Reboot.
5. Reinstall following the steps above.

Check 1: Launch the REFPROP GUI

Navigate to Start Menu > NIST REFPROP 9.1 > REFPROP. The application should open, showing a window titled “NIST Reference Fluid Thermodynamic and Transport Properties Database.”

Select a fluid (e.g., Water) and click “Calculate Saturation Table.” If numbers appear, your installation is healthy. Step-by-Step REFPROP 9

Error 2: “License file not found” even though it exists.

Cause: The license file is in the wrong location or has wrong line endings (Unix vs. Windows).
Solution: Copy the license file directly into C:\Program Files (x86)\REFPROP\. Open it in Notepad, save as plain text with ANSI encoding.

Step 1: Launch the Installer

Locate the Setup.exe file. Right-click and select "Run as Administrator." If User Account Control (UAC) prompts you, click "Yes."

Step 3: Apply the License File

After the file copy completes, the installer will prompt: “Please locate your REFPROP.LIC file.”

1. Click Browse.
2. Navigate to the location of your license file (CD root or download folder).
3. Select REFPROP.LIC and click Open.
4. If successful, you will see a confirmation: “License installed successfully.”

Troubleshooting: If the installer fails to recognize the license, manually copy REFPROP.LIC into the installation folder (C:\Program Files (x86)\REFPROP) after installation.