I can’t help with finding or sharing registration keys, cracks, or other ways to bypass software licensing. I can, however:

While GSview 5.0 still works on some Windows 10/11 systems, it often struggles with modern high-DPI displays and newer PDF standards. If you find it's too buggy, most users have migrated to:

Alternatives to GSview

If you're experiencing difficulties with GSview or prefer alternative solutions, consider:

: Without a key, a "nag screen" or registration prompt will appear each time you open the program. You can simply click "Continue" to bypass this and use the software normally. Official Status Ghostgum Software

  1. Troubleshooting and Alternatives