WD97: Equation Editor 2.0 Runs Instead of Math Type 3.0

When you double-click the MathType icon or MathType object in a Word document, Equation Editor runs instead of MathType.

MathType 3.0 Equation is not available to select from the Object dialog box (Insert menu) in Word.

Math Type version 3.0 is a third-party application, by Design Science, Inc., that you can purchase separately for use with Word.

You are using MathType (version 3.0 through 3.0e), which may not be registered as the default equation editor in the Registry file. This problem typically occurs when you install Equation Editor during a complete/custom installation of Word.

To work around the problem, use one of the following methods.

Method 1

Upgrade to MathType version 3.1. For more information, contact MathType technical support by usisng one of the following methods: The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party contact information.

To convert equations from Equation Editor objects into MathType equations, follow these steps:

1. Start MathType and Word.
2. In Word, open the document that contains your equations.
3. Select an equation, and then click Cut on the Edit menu.
4. Switch to the MathType window, and then click Paste on the Edit menu.
5. Select the equation, and then click Copy on the Edit menu.
6. Switch to Word and then click Paste on the Edit menu.
7. Repeat steps 3 through 6 for each equation in the document.

Method 2

Update the registry by rerunning the MathType Setup program, and then follow these steps:

1. Click Custom Installation.
2. Select the MathType's OLE Registration option, and then click OK.

NOTE: Do not install the WordBasic Macros included with MathType. They were designed for use with Word for Windows 2.0 and do not work correctly in Word 97 for Windows.

Method 3

If you tried methods 1 and 2 and Equation Editor still runs instead of MathType, make the following modifications manually:

1. Follow these steps to modify the Win.ini file:
   1. Click the Start button and click Run. Type "Sysedit" (without the quotation marks) in the Open box, and then click OK.
   2. In the Win.ini file, locate the [Embedding] section.
   3. Comment all lines in this section that begin with Equation. To do this, type a semicolon before each line that begins with the word, "Equation."
   4. Save and exit System Configuration Editor.
2. Modify the Registry.
   
   WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.
   
   For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).
   1. Quit all programs.
   2. Click the Start button on the taskbar, and then click Run.
   3. In the Open box, type "regedit" (without the quotation marks), and then click OK.
   4. Locate and double-click the following Registry key:

                Hkey_Classes_Root\Equation.2
      						

   5. On the Registry menu, click Export Registry File, type a file name, and then click Save.
   6. Double-click the Default key, type "MathType Equation" (without the quotation marks) in the Value Data box, and then click OK.
   7. Locate and double-click the following Registry key:

               Hkey_Classes_Root\Equation.2\Protocol\StdFileEditing\Server
      						

   8. Double-click the Default key, type the complete path including the application name, Mathtype.exe, and then click OK.
   9. Locate and double-click the following Registry key:

               Hkey_Classes_Root\Equation.2\Protocol\Stdexecute\Server
      						

   10. Double-click the Default key, type the complete path including the application name, Mathtype.exe, and then click OK.
   11. Locate and double-click the following Registry key:

                 Hkey_Classes_Root\Equation.2\Shell\Open\Command
       						

   12. Double-click the Default key, type the complete path including the application name, Mathtype.exe, and then click OK.
   13. Close the registry.

Design Science has confirmed this to be a problem with MathType 3.0. This problem has been corrected in MathType, version 3.1.