Launching "tyrian.exe" j get "runtime error 005 at 0002:3f40"
Launching "tyrian2.exe" j get "setup error: important setup files are missing or damaged!"
J downloaded tyrian.exe here , can it be fixed?

Have you tried redownloading?

More importantly, did you run the setup program before running the game -you need to tell it what sound settings etc to use.

check for write protected files

error 5 means acces denied and is usually related to file acces.

i thought that run time error is connected with "too fast" machine (like division by zero)
anyways have you tried programs which slow down your computer?

russ. nah the too fast error is usually different (200 or so)

Resolved!!
write protection!!
works on my p4 2.8Ghz in win98se window (need to be slowed)
Thank you all.