[Sedoy]

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Thanks for trying to fix the issue. 
I followed all the steps you suggested (attach screen). 
Activation fails. I attached the key that I see now. Maybe you need to regenerate the license key? 
I put the key again...

Nothing changed. What is the problem? License not accept, or looping ask license? Work older ISTA?

The problem is that the license is not accepted (screen attache). Button "NEXT" is inactive. 
Previous version of ISTA worked fine

Then you not right cleaned or maybe used another patch that is  now detected. I can not help you.

After a lot of experiments with version 4.37.22, I could not apply the license key. Today I installed 4.37.30 and the license activation problem was solved!
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To everyone who had problems with activation 4.37.22, do not waste time, cleaning the registry and installing version 4.37.30! 

I think you use installer, or? 

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Dear, Sedoy

Could you give me the license for ISTA+ 4.37.30?
Thanks

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Hi: Sedoy



Could you give me the license for ISTA+ 4.37.30




Thanks !!