I had to install Win again after a SSD-Crash. I use Kontakt 4 since 2009, I cannot install it again because my CD has a fracture.
My question, is there any chance to get a working CD from somrwhere?
You'll need to contact support to get an installer. We don't make CDs anymore. Please also note that Service Center no longer works: Service Center and Legacy Products End of Life
You'll need to install Native Access: https://www.native-instruments.com/en/specials/native-access-2/
And enable legacy products.
Most likely not. Also it will probably be a problem getting it all activated after installation.
However then you can ask N.I. Native Access and Installation Support if they can provide downloads of what you need , they also those to ask for doing an off-line activation of the installation. If you are using something as old as that then it is that much more recommended that you do a drive image based backup of everything and of all drives on your computer when things are actually working.
In case that you need guidance contacting support : How to contact NI Support and How to get in touch with our Customer Care
I enabled legacy produchts but Kontakt 4 is not shown and the instruments are shown as demo in Kontakt 8
Well, as said last year, please get in touch with support then: https://bit.ly/NI_support_NA