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Reference Patterns

Download reference patterns calculated from the COD free-of-charge.
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Match! Frequently Asked Questions

The "Frequently Asked Questions" (FAQ) provides an overview over the most common questions along with the corresponding answers:

Using 32-bit ICDD PDF databases on Windows 64-bit

If you would like to use an older PDF database that is only available as 32-bit application (e.g. the PDF-2 2010) on a Windows 64-bit operating system, please make sure to also use the 32-bit version of Match!.
The background is that when using the 64-bit version of Match!, the software is unable to access the 32-bit database access library that is installed along with the PDF, so Match! cannot detect its presence and ignores it.
More recent versions of the PDF are installed as 64-bit applications on 64-bit Windows system, so the problem does no longer occur.

Silent (unattended) installation

You can install Match! silently (i.e. without user interaction or notice) on Windows PCs, provided that the Microsoft Visual C++ 2015 redistributable (which can be downloaded from Microsoft) is already installed on your PC. In order to do so, please open the Windows PowerShell (Administrator) on your PC, move over to the directory in which the Match! installer has been stored, then enter:

.\Match-3-windows-x64-installer.exe --mode unattended --prefix "D:\Program Files\Match3"
This will install the Windows 64-bit version of Match! in the directory "D:\Program Files\Match3" without user interaction.

Menu display or mouse position problems on Windows

In certain circumstances, the menu bar and/or the top of the icons below (the so-called "tool bar") are not visible.
This issue is typically caused by an incompatibility or bug of the graphics driver. Please download and install the most recent driver version for your graphics card, then restart Match!.

High DPI display problems on Windows

Normally, Match! shows some display issues on high DPI computer when using the Windows operating system. In order to fix this problem, you should run Match! from the command line in the Match! program directory using the following command/parameter:

Match!.exe -platform windows:dpiawareness=0

You might want to create a corresponding batch script file in order to facilitate the launching of the program.
More information about this issue and its resolution can be found on the corresponding Qt web page.

Match! crashes after splash screen on Windows 7 64-bit

We have received two reports of Match! crashing right after displaying the splash screen (no program window is shown). In both cases, Windows 7 64-bit was used as operating system. At least in one case, the problem was caused by a wrong OpenSSL installation or configuration. This problem can be solved by (re-)installing OpenSSL as follows:

  1. Download OpenSSL from Normally, you should download the version Win32OpenSSL_Light-1_1_0d.exe.
  2. Run the installer, and install the main files to “C:\Program Files (x86)\Openssl” (or similar). Make sure to install the library files to the Windows system directory when you are asked to do so.
  3. When the installation has finished, please try to run Match! again.

When running Rietveld (FullProf) calculations I always get error messages like "Unable to read Rietveld output file fpcalc.out" or "Your refinement did not converge".

If these messages are displayed every time you try to run a Rietveld refinement calculation, please verify that you are using FullProf release April 2013 (or later). Older versions of FullProf may not be compatible with Match!. You can select the directory in which an appropriate FullProf version is installed on the "Rietveld" tab of the "Tools/Options"-dialog.

The "Rietveld (FullProf)" command is not active/available, even though I have defined the path to FullProf.

Please note that Rietveld refinement requires both diffraction data as well as crystal structure data. For the latter, the entries in the Match list are used. Hence, you first have to import diffraction data, run a search-match and select at least one entry/phase as "matching" before the "Rietveld (FullProf)" command becomes available.
We will modify this behaviour in version 2.1.1: Here the command will remain active, but you will get a corresponding 'error' message when you run the command without having performed a phase-identification as described above.

How can I transfer the Match! diffraction pattern graphics to Microsoft Word as scalable vector images?

In contrast to version 1, the current version of Match! does not support the export of Windows enhanced metafile files (*.emf). In order to transfer your diffraction patterns as scalable vector plots to Microsoft Word, you can use the Scalable Vector Graphics format (*.svg) in combination with one of the following options:

  • Use the open source program Inkscape in order to convert svg-files into emf-files, and import these emf-files into Word
  • Import svg-files into Microsoft Word through Microsoft Visio
  • Load the svg-file into Adobe SVGViewer, and copy it to Microsoft Word by "Drag and Drop"

Each time I try to create a reference database from an existing ICDD PDF database (release 2005 or later, relational database system), I get an error message. What can I do ?

In the following, we will demonstrate how to check the required settings and drivers for any ICDD PDF relational database. We will use the PDF-2 Release 2012, so please note that you must replace "DSN_PDF2012", "PDF2012" and the directory names by the corresponding values for your PDF version (e.g. "DSN_PLU2012" for PDF-4+ Release 2012, DSN_ORG2011 for PDF-4 Organics Release 2011, or DSN_PLW2012 for the WebPDF-4+ Release 2012):

I would like to add own diffraction data to the user database. Does this affect my PDF installation ?

No. The user database is stored independent from the PDF database in a separate directory. Match! accesses the PDF in "read-only" mode; i.e. your PDF is not affected in any way. The combination of PDF and own (user database) entries is achieved by creating combined index files, which themselves are stored in a separate directory.