I'm impressed that this (at least 20 years old) version is still running under W10.
Personally I would not waste a second time to maintain such an old version - except migration to a newer version.
Is there an API (ActiveX/COM or .NET) from ACER or Windows to check the keyboard state? If there is a .NET-API you have no chance with V8. Otherwise maybe?!
If there is an API you write e.g. an C#/VB-wrapper to check the keyboard state and set a flag e.g in the MAGIC.INI