When you install MathType 7 from the official website, you typically get a 30-day trial. After that, you must enter an activation key purchased from Wiris or an authorized reseller.
A: Almost certainly not. At best, it’s a fake key that won’t work. At worst, it’s a malware dropper disguised as a text file (Windows hides .exe extensions by default). Never open such files. Mathtype 7 Activation Key
Old versions (MathType 6 or earlier) may no longer be activatable. In that case, you may need to upgrade to MathType 7 or the subscription version at a reduced upgrade price. When you install MathType 7 from the official
The activation key is a unique code that unlocks the full features of MathType 7. Without it, users are limited to a trial version, which may not provide access to all the tools and functionalities. By activating MathType 7, users can: At best, it’s a fake key that won’t work