@MiKl > I have tried a while ago to copy and paste text from SumatraPDF to Notepad++ and back to search field of Sumatra, and all has been working well. But I use now Kexbases 10, so the problem must be in the used Kexbases version. As far as the browser images, I have neither SeaMonky, nor CorelDraw, but a similar constallation: Kex-Firefox/Opera and non-Kex-PaintShop7/PhotoShop7. Again, with Kexbases 10 I have no c&p problem.
@jumper > Yes, I was initially afraid that by mixing of different KernelEx component versions I get some mismatch. So first I experimented with a pure version 10. Foxit 4/5 worked correctly and all other programs, only Cinema4D R13 (otherwise working with only the original Xeno's build) still crashed when attempting to open help or tutorials from inside the program. Then I tried the version 12 with only Kexbases 10, and it was all right. Till now I have found no defect in any program, using this "mismatch" combination. So meanwhile I wait until some collision appears… or until Kexbases 12 will be revised…