# FMS Data Manager Replacment

**URL:** <https://forum.navigraph.com/t/fms-data-manager-replacment/23234>\
**Category:** Navigraph Hub\
**Created:** [April 17, 2026, 1:44pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234 "2026-04-17T13:44:32Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![nobbyh](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nobbyh](https://forum.navigraph.com/u/nobbyh)\
**Post date:** [April 17, 2026, 1:44pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/1 "2026-04-17T13:44:33Z")

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As a longstanding customer of Navigraph, and also a long-standing programmer/flight-simmer (over 50 years), can I dare to express my absolute dis-satisfaction with the FMS Data Manager in contrast to the excellent and ever-improving Navigraph Charts program!

When is it ever going to improve from its muddle-headed user interface and choices. For me it never seems to do the right thing and doesnt even seem to accept that X-Plane 12 even exists! Is there someone in the Navigraph team who has responsibility for It?

Am I alone in feeling this way\> NobbyH

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**Author:** ![NAVData](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/navdata/32/30549_2.png) [@NAVData](https://forum.navigraph.com/u/NAVData)\
**Post date:** [April 17, 2026, 1:55pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/2 "2026-04-17T13:55:06Z")

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Hi,  
You have found the right person 😉

The FMS Data Manager is indeed a really old program, and no further development (excluding bugfixes) is planned for this tool. The FDM uses old (party outdated) software parts, which are still EOL (end of life). We have a few ideas for a newer version or extending the current Navigraph Hub, but we are at the beginning of this process.

On the other hand, the FDM still works and should find your XP12 path. Before we start to look deeper into it:

1. Can you confirm that you have only one XP12 version on your system?
2. Which is your XP12 root path?
3. Do you use MAC or Windows?

Cheers,  
Richard

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**Author:** ![nobbyh](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nobbyh](https://forum.navigraph.com/u/nobbyh)\
**Post date:** [April 17, 2026, 2:39pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/3 "2026-04-17T14:39:25Z")

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Hi Richard, thanks for the quick response.

I am glad to hear you are abandoning the current program and switching to a Charts extension.

I have three copies of X—Plane 12 on my system, an active system and two back-up copies; a bit over the top you may think, but a number of un-recoverable crashes from having a plethora of complex plug-ins has made me very wary. In fact I use X-Plane 12/Zibomod to support my 737 cockpit hardware which covers most of the important flight control hardware.

Getting rid of irritating “Nav data out-of-date” messages is not essential but paying a license fee should give an easy recompense without hassle.

cheers NobbyH

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**Author:** ![nobbyh](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nobbyh](https://forum.navigraph.com/u/nobbyh)\
**Post date:** [April 17, 2026, 2:58pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/4 "2026-04-17T14:58:18Z")

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Again Richard, to answer your specific questions.

I am using Windows 11, and my active X-plane 12 directory is: E:\ X-Plane 12

To be honest a proper description of the process that FMS Data Manager achieves is all that is needed. Programs that try to be too clever always fail, the end-user understands his needs best.

Cheers NobbyH

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**Author:** ![NAVData](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/navdata/32/30549_2.png) [@NAVData](https://forum.navigraph.com/u/NAVData)\
**Post date:** [April 17, 2026, 3:05pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/5 "2026-04-17T15:05:51Z")

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Okayyyy 🙂 …

Bad news:  
The FMS Data Manager can´t handle multiple X-Plane installations, and I assume that’s your issue here.

… but I don´t want to stick on the bad news 🙂

Here, the good news - there is a workaround and I will try to explain it in detail, so that you can try to reproduce it:

For the demo, I have created 3 different XP-12 installations:

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/3X/5/0/50e8bcac6f058f9489ee37841381f74497f1ff0f.png)

Here is a step-by-step description - please follow it exactly:

1. Open the FMS Data Manager and switch to the `Addon Mappings` tab

2. Remove ALL X-Plane 12 entries first  

3. Press the `Save` button  

4. Press the `+ Add` button and select `X-Plane 12` from the dropdown list  

5. Open the `Install into ...` drop-down list and select `User Defined Folder.`  

6. Go into your `X-Plane12` folder and select the `Custom Data` folder  

7. Press the `Save` button, and you should see the first X-Plane 12 line (green box)  

Repeat this process from #4-7 for each different X-Plane 12 folder

After that, go back to the `Addon List` and you should see x X-Plane 12 entries/lines

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/3X/7/b/7b625022c4a5e2ea69fad3268fecf77b3509505d.png)

Select all x X-Plane 12 lines and press the `Update` button, thats it … from now on you can update all your different X-Plane 12 installations via the FMS Data Manager. The important point here is the `USER` information, indicating that you created the mapping manually.

Hope that helps  
Richard

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**Author:** ![nobbyh](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nobbyh](https://forum.navigraph.com/u/nobbyh)\
**Post date:** [April 17, 2026, 5:04pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/6 "2026-04-17T17:04:21Z")

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Hi Richard,

Followed all your instructions and successfully updated all 3 of x-plane 12 installations to 2604 level.

Thanks for the help, cheers NobbyH

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<div class="post-metadata">

**Author:** ![NAVData](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/navdata/32/30549_2.png) [@NAVData](https://forum.navigraph.com/u/NAVData)\
**Post date:** [April 17, 2026, 5:17pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/7 "2026-04-17T17:17:00Z")

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Excellent … 👏

Enjoy your weekend  
Richard

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\
**Post date:** [April 19, 2026, 5:17pm UTC](https://forum.navigraph.com/t/fms-data-manager-replacment/23234/8 "2026-04-19T17:17:24Z")

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Closed on April 19, 2026, 5:17pm UTC

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