Version 2004.

What works

* Flying a pre-made flight or a custom flight (see below!)

* Single-player gameplay

* Joystick

* Maximum graphics settings (using an Nvidia GeForce 310M with the proprietary Linux driver)

* Browsing the in-game learning center, flight school, news, etc. (see below)

* In-game "kneeboard" (partially)

* Addon aircraft (i.e. freeware 737NG)

What does not

* Installation, requires 4-cd workaround (using an original copy here)

* CD copy protection does not work either (had to bypass it)

* Launching the simulation from the "create a flight" screen; the game crashes, however it is possible to work around this and fly custom flights (see below!)

* Menu bar as with previous testers

* GUI draws fine overall but does have some issues: the "rotating aircraft" in the create a flight screen does not show up unless the graphics options are turned down so that the simulator is in software rendering mode, and certain text fields just draw the first line endlessly, like

The quick brown fox jumped over the

The quick brown fox jumped over the

The quick brown fox jumped over the

...

* Launching flights from the in-game flight school and learning center, this is because the HTML pages make use of a special "fs-plan:" protocol that the wine browser does not properly associate with fs9.exe (see workaround below)

* HTML rendering in the in-game kneeboard is broken altogether

* Some ATC functions appear not to work (particularly "requesting clearance" from clearance delivery stations)

What was not tested

* Online multiplayer

* Installing scenery addons

Additional Comments

* I also get messages about missing fonts on startup, but this is probably due to the fact that I don't have any MS fonts installed. Text renders (almost) perfectly regardless.

FLYING CUSTOM FLIGHTS:
----------------------
After setting up your flight in the create a flight screen, go to the select a flight screen, go to "my flights," and fly the "UI generated temporary flight." Sometimes you get lucky and the sim launches it perfectly. Otherwise, your safest bet is to save the flight in the create a flight screen, restart the game, and load it from "select a flight."

LAUNCHING TUTORIAL FLIGHTS:
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You'll have to launch fs9.exe manually. For example, to launch flying lesson #2 ("Turns"), the link URL is this:
fs-flight:lesson@lessons\student\Lesson%202.FLT
So launch fs9.exe like this:
wine fs9.exe lesson@lessons\student\Lesson%202.FLT