StrataWx Quick Start.
Real-world weather in Microsoft Flight Simulator 2024 and 2020, from install to your first injected flight. StrataWx is two pieces that work together: a desktop app that builds the weather, and a small in-sim panel that flies it into the sim. This guide sets both up, then keeps going for activation, first flight and the handful of snags worth knowing about.
| Simulator | Status |
|---|---|
| MSFS 2024 | Live |
| MSFS 2020 | Live |
| X-Plane 12 | Live |
Windows 10/11 x64. Signed installer. The Manager activates your licence and installs StrataWx. Free updates, forever.
What you need
A short checklist. If you already own a StrataWx license and have MSFS installed, you have everything.
| Requirement | Detail |
|---|---|
| Operating system | Windows 10 or 11, 64-bit. |
| The simulator | MSFS 2024, MSFS 2020, or both, from Steam or the Microsoft Store. Run each sim at least once before you install, so StrataWx can find its Community folder automatically. On the previous generation, MSFS 2020 live weather sets out what changes and what does not. |
| A StrataWx license | One license covers up to three of your own PCs. Buy for MSFS 2024, MSFS 2020, or both. See pricing. |
| Disk and runtime | A few hundred MB in total, including a one-time StrataSim Manager the installer sets up for you. No admin rights and nothing else to install: the app brings its own runtime. |
| One weather engine | Only one engine should drive the sim at a time. You can keep Active Sky FS installed, but close it before you fly: StrataWx warns you when it sees Active Sky FS running and offers to close it. If any other live-weather add-on is running, turn it off so the two do not fight over the sim's weather. Coming across from Active Sky FS? The StrataWx vs Active Sky FS page sets out how the two differ. |
Install StrataWx
Start with the new StrataSim Manager. Sign into your shop account, add your existing license if needed, and install StrataWx from Library. Keep your simulator closed during installation.
Five steps, start to finish.
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01
Download the StrataSim Manager
Get the current Windows installer from stratasim.shop/download or the button above. The new Manager installs, activates and updates your products.
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02
Install and sign in
Run the signed installer, then sign in or create a shop account using the email registered to your license. An old Manager or customer portal account may not already be a shop account.
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03
Add your existing purchase
If the product is not already in Library, choose Register a code and enter your old key. Register each separate key you own. If the Manager says your purchase needs email linking, follow its link to Link your StrataWx license on the shop. No repurchase is needed.
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04
Install
Choose Install beside each owned product in Library. The Manager downloads, installs and activates it. MSFS 2020 and MSFS 2024 share one StrataWx installation; X-Plane 12 has its own app.
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05
Launch
Once installation and activation finish, choose Open in Library. Let StrataWx finish setting up its simulator integration before starting your simulator.
Already running the sim? MSFS only loads Community add-ons at startup, so if it was open during install, close and restart it to pick up the panel. And if Active Sky FS is running, StrataWx warns you to close it first. Only one engine should drive the sim.
Activate your license
Your products belong to your shop account. The new StrataSim Manager activates them on this PC when you install them.
Bring an existing license into your account.
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01
Open the StrataSim Manager
Open the new StrataSim Manager and sign into your shop account using your registered license email.
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02
Register a code
In Library, choose Register a code and paste your existing key. Use the account with the email already registered to that key. A key registered to a different email needs that account or help from support.
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03
Link older purchases if prompted
Some older purchases are linked by email instead of registering a code. Follow the Manager's link to Link your StrataWx license, complete verification, then refresh Library.
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04
Open StrataWx
Install your owned products from Library. The Manager activates them automatically, then Open launches the app. Multiple keys and combined keys can cover MSFS 2020, MSFS 2024 and X-Plane 12.
Already using an older installation? Use its Move my setup banner when available to preserve your setup through guided migration. For a fresh installation, you can start directly with the new Manager.
Managing your PCs.
One license runs on up to three of your machines at once. Reinstalling on a PC you have already activated does not use another seat, it reclaims the same one. Moving to a fourth PC means freeing a seat first.
| To do this | Where |
|---|---|
| See your PCs, free a seat | StrataSim Manager, License view: it lists your machines (used out of three) with "Free seat" on any PC, and "Deactivate this PC" on the one you are on. |
| Remove an old PC from the web | The account portal at stratawxfs.com/portal. Sign in with the one-time email link (no password), then Deactivate the machine you no longer use. |
| Add the other simulator | Use the Add link on your entitlement in the Manager, or buy the cross-sim upgrade. It is never a full re-buy. |
Your first flight
Start the app, start the sim, and StrataWx does the rest. There is no SimConnect wiring and no weather preset to add by hand.
Four steps to weather in the sim.
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01
Start the desktop app
Launch StrataWx and leave it running. It quietly hosts a local weather engine at 127.0.0.1:19286, the loopback address the in-sim panel reads from. Close the app and the sim reverts to its own weather.
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02
Pick a mode
Choose Live, Historical or Sandbox with the SOURCE selector. Live flies the weather happening right now; Historical replays a past moment; Sandbox lets you author exact conditions.
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03
Start MSFS and load a flight
The app links to the sim on its own; the SIM LINK indicator turns green. StrataWx creates its "StrataWx Live" weather preset for you and begins injecting around the aircraft. Give it a few seconds after the aircraft loads to move from standby into injecting.
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04
Open the panel (optional)
From the in-sim toolbar, open the StrataWx panel to watch what is being injected and to adjust turbulence, transition smoothing, freeze or refresh. Injection runs whether or not that window is open, so opening it is a choice, not a step you can forget. On the 1.5.0 beta, every turbulence control is explained in Turbulence settings.
Order is flexible, app first or sim first, but the desktop app must be running for weather to reach the sim. It is the engine; the panel just flies what the engine serves.
Troubleshooting
The handful of things worth knowing, and the fix for each.
- The panel reads OFFLINE, or shows no data
- The panel talks to the desktop engine, so OFFLINE means the app is not running. Launch StrataWx and leave it open, then load a flight; the panel connects when the app is up.
- STANDBY instead means the app is running but there is no aircraft or preset yet. Load a flight and give it a few seconds to start injecting.
- The StrataWx panel is missing from the toolbar
- Either the panel went to a Community folder the sim is not reading, or MSFS was already open when it was copied in. MSFS only loads Community add-ons at startup.
- Confirm the right Community folder (the app's Settings can re-point it, and StrataWx moves the panel for you), then fully restart MSFS and open the panel from the toolbar.
- The two simulators keep separate Community folders and get separate panel builds, so on the previous generation check the 2020 folder specifically. MSFS 2020 live weather sets out where it lives and why the restart there is always a full one.
- After an update the weather looks stale, or a banner says to restart MSFS
- The in-sim panel loads only at sim start and does not ride the auto-updater, so if the sim was open during an app update it keeps running the old panel. The app shows an amber "restart MSFS to load the latest panel" banner when it notices.
- Restart MSFS so the fresh panel loads. If it persists, close MSFS, relaunch the desktop app so it re-copies the panel, then start the sim again.
- The temperature looks wrong, or too cold, in an imperial cockpit
- A unit-detection fix ships on the current build line. Make sure you are up to date; if you are on the Stable channel and still see it, switch to Beta under Settings, Updates, Release channel to get the fix now. Then use "Upload logs to support" and tell us your MSFS temperature and pressure unit settings so we can close out any remaining edge case.
- Switching channel is always reversible from the same place. In the rare case a test build leaves the app unable to open at all, so you cannot reach Settings, delete %APPDATA%\@stratawx\ui\channel.json first, then reinstall from the Download page. That resets you to Stable.
- Weather keeps changing or fights the sim
- That is the sign of a second live-weather engine running alongside StrataWx. Run only one: close any other live-weather add-on so the two do not fight over the sim's weather. If it is Active Sky FS, StrataWx warns you while it runs and can close it for you.
- Stutters, freezes, or unexpected behaviour on a long flight
- The current build line smooths how often weather is applied and steadies the winds on descent, which is what a clean long flight depends on. Several of those stability fixes land on Beta first, so if you are on Stable and still hit this, switch to Beta under Settings, Updates, Release channel to get them now.
- You can move back to Stable in the same place whenever you like. If a test build ever leaves the app unable to open, so Settings is out of reach, delete %APPDATA%\@stratawx\ui\channel.json first, then reinstall from the Download page to get back to Stable.
- If anything odd remains, use "Upload logs to support" right after it happens, so we can see exactly what the engine did.
- An update stalls or errors
- The updater times out a stuck check or download and retries on its own, and it checks again every few hours. If it keeps failing, make sure your connection and firewall can reach download.stratawxfs.com, then relaunch the app. Every download is checksum-verified, and the updater never downgrades.
Updates
You never chase a download. StrataWx keeps itself current, and updates are free for as long as you own it.
On launch, and every few hours after, the app checks the update feed, fetches the signed installer, verifies its checksum, and applies it in place. It never downgrades, so you always move forward. There is nothing to click, and no version to hunt down. If a release ever turns out bad, we correct it by publishing a new build, which reaches everyone on that channel automatically. You can also switch channels under Settings, Updates, Release channel, which moves you onto that channel's current build. Pick it while the Software updates row is not showing Downloading: switch mid-download and the choice is saved but nothing moves, so wait for that row to settle and pick again.
| Channel | What you get |
|---|---|
| Stable | The default. Well-tested releases, updated automatically. |
| Beta | The newest fixes first, switch to it under Settings, Updates, Release channel. Beta also receives stable releases, so a beta tester graduates on their own without reinstalling. |
| Alpha | The earliest builds, ahead of Beta, updated often. Expect rough edges: these are the versions we are still working on. When the work you have been testing is ready for wider release it moves to Beta, and your Alpha install follows it there automatically, so you end up on the steadier build of the same work with nothing to do. A fix released on Stable for an older version will not reach you, because Alpha is always ahead of it. To move to a steadier line, pick Beta or Stable under Settings, Updates, Release channel while the Software updates row is not showing Downloading: that puts you on the chosen channel's current build, with no reinstall, when you press Restart to update or next start the app. |
Getting help
If something is off, the fastest route sends us exactly what we need to help.
- Upload logs to support, the fastest fix
- In the app, open Settings, Support and click "Upload logs" on the "Send logs to support" row. One click gathers your recent logs, strips your license key, email and Windows account name, and sends them to us. You get a reference number to quote. Offline, it saves the bundle locally with a "Show file" link so you can send it later.
- The support form
- Open Support for a ticket that reaches a person. It helps to say which sim you fly (2024 or 2020), your aircraft and airport, the sim time, and whether the desktop app was running.
- The community
- There is a StrataWx community on Discord where the team and other pilots talk through issues and what is shipping next. Join at stratawxfs.com/discord.
Ready to get started? Download the StrataSim Manager, which installs StrataWx, or head back to the overview to see everything it does.