Forgot the password to my SysTools Folder Key. Is there any possible way to unlock it without the password, maybe using another program?
There is no way to remove the password in case you've forgot it. In most of the cases, applications of this kind don't have a password reset feature just because they were created for this purpose: to protect at all costs. You might need to get in touch with the developer to be able to get additional guidance regarding this problem.