While installing MathType, I receive an error message indicating that the CTL3DV2.DLL could not be installed. The installation then abruptly ends. While we are unsure as to why exactly this error occurs, we have found that the error message is associated with multiple copies of the CTL3DV2.dll file on the computer. Only one copy of this file is needed, and somehow, more than one interferes with the installation process. Close all running applications.
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Depending on your situation, you may have one or more files with this file name located on your system. Once you have renamed all the matching files, rerun the MathType installer which will install and register properly the CTL3DV2.DLL file into your System32 folder. Inc. All rights reserved. Mail to the webmaster.