Refprop 91 Install !!exclusive!! [ RECOMMENDED ]

By default, the installer suggests C:\Program Files (x86)\REFPROP .

If you see #NAME? in Excel, it usually means the REFPROP.xlam is active but it cannot find the REFPROP.dll in the Windows system folders.

Pro-tip: If you plan on using Python or MATLAB extensively, some users prefer installing to a simpler path like C:\REFPROP to avoid permission issues or "Space in filename" errors in code. refprop 91 install

You will need to point your script to refprop.dll . Ensure your Python environment is the same "bitness" (32-bit vs 64-bit) as the DLL you are calling. 6. Troubleshooting Common Errors

Windows 7, 8, 10, or 11 (32-bit or 64-bit). 2. Running the Core Installation Launch the Setup: Double-click the REFPROP91.EXE file. License Agreement: Read and accept the NIST license terms. Pro-tip: If you plan on using Python or

You must also copy the file REFPROP.DLL from the installation folder to your C:\Windows\SysWOW64 directory (for 64-bit Windows) or C:\Windows\System32 (for 32-bit Windows). This allows Excel to "see" the engine. 4. Connecting to MATLAB

To use REFPROP 9.1 in MATLAB, you need a wrapper file (often provided in the MATLAB subfolder of the installation). In MATLAB, use addpath('C:\Program Files (x86)\REFPROP') . Use the refpropm.m function to call properties. 6. Troubleshooting Common Errors Windows 7

Most users utilize REFPROP via the Excel Add-in. Here is how to enable it: Open Excel and go to .