You don’t necessarily need to run MathType 5.2 to access your old work:
Search for “Design Science” or “MathType” in old email accounts. Purchase confirmations from 2000–2008 often contain the registration name and key.
Legacy documentation and user forums sometimes list registration details that were used for version 5.2. According to a MathType 5.2 Registration Form
The registration process for MathType 5.2 differs significantly from current versions because it is a legacy product originally released in
Wiris does not guarantee recovery for versions this old, but it’s worth a try.
You don’t necessarily need to run MathType 5.2 to access your old work:
Search for “Design Science” or “MathType” in old email accounts. Purchase confirmations from 2000–2008 often contain the registration name and key.
Legacy documentation and user forums sometimes list registration details that were used for version 5.2. According to a MathType 5.2 Registration Form
The registration process for MathType 5.2 differs significantly from current versions because it is a legacy product originally released in
Wiris does not guarantee recovery for versions this old, but it’s worth a try.