Prepar3D v4.1 is available now!
Our website provides a free download of Prepar3D 3.4.22.19868. The most frequent installer filenames for the software are: Fsx.exe and Prepar3D.exe etc. This software was originally developed by Lockheed Martin Corporation. This PC program was developed to work on Windows 7, Windows 8 or Windows 10 and is compatible with 32 or 64-bit systems.
The Prepar3D team is excited to release the first update to v4! We have been hard at work building upon the major changes made in version 4 to continue making Prepar3D the most feature-rich, stable, and performant training platform available. This release includes numerous enhancements, new features, and bug fixes based on user and developer feedback.
Virtual Reality (VR) is now available in any view and includes an interactive mouse pointer enabling cockpit interaction. Aircraft interiors are brought to life with support for 4k textures and cockpit rain effects. Many updates were made to further improve stability, add-on compatibility, and performance in this release.
- Prepar3D 4.1 Released by Erik on 10th October 2017 News P3D Lockheed Martin have just released P3D v4.1, the first major update that has come to the platform since it’s release. This comes earlier than originally proposed and is a pleasant suprise.
- The Prepar3d Forum; P3D v4 vs 4.1 Performance Question Sign in to follow this. P3D v4 vs 4.1 Performance Question.
- During the installation you will be asked to browse to the location where you created a copy of Prepar3D.exe renamed as fsx.exe. See again section 3.3 how you did this. YOU NEED TO FOLLOW THE NEXT STEP 4.1 BY THE LETTER. Step 4.1 1 Check the box Flight Simulator X 2 Press the Browse button and find the root of P3D4 installation.
The development pipeline and toolset has been updated to further optimize complex models. New features to the Prepar3D Development Kit (PDK) include built-in support for cockpit rain and snow visual effects, support for 3D window positioning, advanced samples for Helmet Mounted Displays (HMDs) and targeting pods, and stability improvements and bug fixes throughout the content creation process. Prepar3D is focused on giving developers the tools they need to be more efficient and create the highest quality products available.
The Prepar3D v4.1 update is available now and can be downloaded from the Downloads page. If you currently own a valid Prepar3D v4 license there is no charge to update to Prepar3D v4.1. To purchase Prepar3D v4, please visit our online Store.
Prepar3D offers separate updates for the Client, Content, and Scenery. This will make updating faster and easier than ever before. Please be sure to read the Prepar3D v4 Download and Installation Instructions for more details on how to quickly update to the v4.1 release. It is strongly recommended to only download and install the Client as there are only minor updates to content and scenery for this release. Please refer to the What’s New below to see if these fixes are required for your training needs.
You can find a full list of What’s New below.
Release Notes
The Prepar3D v4.1 release brings many exciting changes and enhancements to the platform.
The following list of updates has been categorized based on the installer required.
The Client installer is required for Prepar3D v4.1, however the Content, Scenery, and SDK installers are optional. You must first have Prepar3D v4 installed to utilize the Client only installer. To install the Prepar3D v4.1 Client, you must first uninstall the Prepar3D v4.0 Client via Programs and Features in Windows Control Panel. The Prepar3D v4.1 Client update will require you to reactivate your product, however if you have an internet connection it will be automatic.
Prepar3D Client
General Platform Updates
New Features
- Virtual Reality (VR) is now available in any view and has its own dedicated menu
- Added interactive mouse pointer in VR
- Added support for 4k Virtual Cockpit (VC) textures
- Custom icons can be placed and rendered in the world. Their location can also be viewed in the 2D map.
- Health points for the ownship are now displayed in InfoGen text
- Added “HideMouseLookCrosshair” config option to disable the cross icon when using mouse look
- Notification text can now be added using the “CustomNoticeText” config option
- Added support for cockpit rain effects. Added effect to default vehicles (requires Content installer)
New Features (Professional Plus Only)
- High-Level Architecture (HLA) network interface is implemented (experimental – work in progress)
Fixes and Improvements
- Fixed an issue where turn rate was incorrect for large ships
- Fixed an issue that prevented legacy Prepar3D v1 SimConnect apps from properly connecting
- Fixed various z-ordering issues with primitive objects
- Fixed issue with SimConnect port values being written incorrectly to the registry
- Fixed intermittent issue with autopilot glide slope
- Barometric pressure units now display correctly in the Custom Weather screen
- Added scenario favorites button back to the Load Scenario screen
- Updated select camera control descriptions to be more consistent
- Fixed issue where weather data for animated scenery objects was invalid after a vehicle change
- Fixed rotation issues with certain lights and effects
- Fixed crash that could occur when calling the FlightPlanDeleteWaypoint function within a gauge
- Updated the default Max VC Texture Size config entry to 4096
- Fixed bug where user vehicle would still move to new location after hitting cancel from the Scenario Edit screen
- Fixed shader support for pre-lit materials without textures
- Fixed crash that could occur when zooming the GPS map
- Duplicated panels are now saved into scenario .fxml files
- Fixed crash that could occur when attempting to change airports at certain locations
- Fixed crash that could occur when reading in invalid autogen data
- Panels with pixel_size value set in config now correctly save their position in fxml files
- Fixed bug where changing the time in small increments in the Startup Screen did not update the simulation
- Fixed bug where quickly hitting enter after typing an entry in the Airport Select screen would not change the user’s location
- Fixed bug where structured scenarios would load incorrectly at the startup screen when set to default
- Fixed bug where unlimited frame rate value was written out differently in saved profiles compared to Prepar3d.cfg settings
- The ATC window now longer processes key commands when key modifiers (Shift, Ctrl, Alt) are held down
- The ATC window now processes key commands when undocked and not focused
- Updated Learning Center file encodings to support Unicode characters
- Autogen polyline buildings now respect the autogen building density slider value
- Fixed issue that prevented light rotation key commands from controlling attached landing lights
- Fixed issue that prevented HDR lighting values from syncing correctly in VR
- Fixed several cases where attached effect rotation values would not update correctly
- Previous camera settings are now restored correctly when leaving VR
- Fixed edge cases where full screen would not black out the main view at the Startup Screen
- Fixed issue preventing full screen resolution from being set correctly in the Startup Screen
- Fixed issue that prevented vehicles from positioning correctly on platforms when loading a scenario
- Updated VR social screen to show both stereo and single views
- Fixed erroneous ordering error that would display when opening Scenery Library with certain add-on sceneries installed
- VR can be disabled with the “LoadVirtualReality” Prepar3D.cfg option
- “Reload User Object” key command now additionally flushes and reloads textures
- Fixed issue that would cause ribbon visual paths to stop drawing after a short period of time
- SpeedTree models now draw correctly in Radar and GData sensor modes
- Fixed view change issues when using the view change hot key in a view group
- VR can be enabled at startup with the “EnableVirtualRealityOnStartup” Prepar3D.cfg option
- Improved detection of VR headsets with more robust error reporting
- Fixed crash that could occur after installing a large number of scenery add-ons
Fixes and Improvements (Professional Plus Only)
- Fixed bug where weapon loadouts would load incorrectly after a reset if the loadout title contained a comma
- Distributed Interactive Simulation (DIS) heartbeat now more configurable
- Attached DIS entities now correctly handled
Multiplayer Updates
New Features
- Added radio frequency support and direct voice chat through multiplayer Chat Window
Fixes and Improvements
- Improved panel state management when entering multiplayer
SimDirector Updates
New Features
- Scaleform Objects can now be placed and rendered within the VC
- The starting waypoint can now be set for AI Objects
Fixes and Improvements
- Gizmo buttons now toggle based on gizmo state
- Fixed slow down when entering the visualization
- BGL can now be exported again through SimDirector
- Fixed bug where translation gizmo would not be selectable if partially off screen
- Fixed crash that could occur when clicking panels while recording a Virtual Instructor (VI) session
- The position of copied objects is now slightly offset from the original
- Camera Objects can now be referenced by View Change Actions
- Fixed issue that prevented object rotation values from exporting to BGL
- Fixed issue where the xml file name would be truncated after the first period when clicking “Save as”
- Camera name validation errors now link to the correct property
- Fixed bug where navigation visuals would stay enabled in SimDirector if changed in core Prepar3D
- Fixed issue preventing RPN scripts from working correctly with Script Triggers
Prepar3D Content
New Features
- Added rain effect to cockpit glass in default vehicles
- F-16A and F-16AM now feature a Helmet Mounted Display (HMD) reticle, which can also be viewed in VR
Fixes and Improvements
- Added configurable max_turn_rate for boat SimObjects
- Updated default scenario flt files to support Unicode characters
- Fixed flashing that would occur with the Fury 1500 when in Black Hot IR mode
- Fixed missing cockpit textures in the F-16
- Removed incompatible AI models
Prepar3D Scenery
Fixes and Improvements
- Fixed missing textures in St. Louis Adams Mark
- Removed invisible objects that could cause vehicle to crash at KBWI
Prepar3D SDK
New Features
- Weather PDK now supports all functions available in SimConnect
- Added CustomIcons sample showcasing new custom icon capabilities
- Added additional Window PDK functions supporting 3D window positioning
- Added PDK Menu service
Fixes and Improvements
Prepar3d 4.5.13 Torrent
- Updated various documentation including Panel API, user selectable vehicles, texture types, and add-on scenery
- Expanded IsSelectableVehicle support for use in fltsim cfg sections
- Fixed issue where Weather METAR functions in SimConnect and PDK would return different formats
- Fixed issue where the bounding box and radius override values were not being written out correctly by the 3dsMax exporter
- Fixed issue that prevented Optimize Parts from working with complex vehicle models
- Updated targeting pod sample showing controllable camera functionality
- Removed Learning Management System (LMS) SDK sample and associated documentation
- Added Managed Scenario Controller SDK sample. This can be used with LMS integration among other applications.
- Fixed SimConnect_Text issue with displaying extended ASCII characters
- Fixed issue with 3dsMax plugins not exporting OverrideRadius and OverrideBoundingBox values
- Added key event token and event id lookup functions to PDK
- Fixed crash and added warning message when attempting to create VC textures with filenames greater than 16 characters
- Fixed crash in managed SimConnect applications on shut down. These applications will need to be recompiled for this change to take effect.
- Fixed several issues with the EnvironmentForceManager
The Lockheed Martin Prepar3D team loves hearing about your experiences with Prepar3D at our Forums. The forums also give us an opportunity to listen to your feedback as we continue Prepar3D development. We’ve partnered with our forum users and with several featured developers to continue to bring added features, enhancements, and optimizations all while enabling additional backwards compatibility, making bug fixes, and improving stability.
Thank you for your continued support for Prepar3D.
We hope you find that Prepar3D v4.1 continues to be the most immersive learning, simulation, and training platform available.
Pete & John Dowson's Software
This is a consolidated list of flight sim related software produced by Pete and John Dowson, with links for downloading and purchasing, where relevant.
Please use Peter Dowson's Support Forumfor all support questions. And please make good use of the Sub-Forums there, which contain much useful information and further resources.
The software available through the links on this site are, for the most part, the current official release. For interim updates refer to the Forum's Download Links subforum.
Main products for FSX, FSX-SE, MSFS and all Prepar3D Versions releases to date | |
[64-bit] | Release 7.0.2 of FSUIPC7 (incorporating the Server for WideFS 7), for use with MSFS Although WideServer7 is built into FSUIPC7, you still need the WideClient from the WideFS link below. The WideServer component is enabled by a separate Registration code, which must be purchased from SimMarket (see below). Note: if you have purchased WideFS to work with FSUIPC4, FSUIPC5 or FSUIPC6, there is no need to re-purchase. Your existing registration details will still be applicable. November 28th 2020. |
[64-bit] | Full release of FSUIPC 6 (incorporating the Server for WideFS 7), for use with Prepar3D 64-bit Versions 4 and 5 Although WideServer7 is built into FSUIPC6, you still need the WideClient from the WideFS link below. The WideServer component is enabled by a separate Registration code, which must be purchased from SimMarket (see below). Note: if you have purchased WideFS to work with FSUIPC4 or FSUIPC5, there is no need to re-purchase. Your existing registration details will still be applicable. November 28th 2020. |
[64-bit] | Full release of FSUIPC 5 (incorporating the Server for WideFS 7), for use with Prepar3D 64-bit Version 4 Although WideServer7 is built into FSUIPC5, you still need the WideClient from the WideFS link below. The WideServer component is enabled by a separate Registration code, which must be purchased from SimMarket (see below). If you have purchased WideFS to work with FSUIPC4 there is no need to re-purchase. Your existing registration details will still be applicable. Note: This product has now been superceeded by FSUIPC6 (above). It is recommended to use FSUIPC6 where possible, although please note that registration keys for FSUIPC5 are NOT VALID for FSUIPC6. June 28th 2020. |
FSUIPC 4.975 [for FSX, FSX-SE and P3D 1.4-3.4] [32-bit] | Full release of FSUIPC 4 (incorporating the Server for WideFS 7), for use with FSX, FSX-SE and Prepar3D 1.4-3.4 May 11th 2020. |
| WideFS7 | Full package for WideFS7, which includes WideClient 7.156, WideCloser 1.0.2 and documentation. |
To buy FSUIPC or WideFS for FSX, FSX-SE, MSFS or Prepar3D, and receive your Registration code, use the relevant link below to go to the simMarketpurchase page:
FSUIPC7 for MSFS | FSUIPC6 for P3D v4 & v5 | FSUIPC4 for FSX and P3Dv3 | WideFS7 for FSX, P3D and MSFS |
Prepar3d 4.5 Update
Additional Free Software | |
| MakeRwys 5.11 | MakeRwys is a simple utility which extracts selected airport data from active scenery, basing its scan on the active SCENERY.CFG file. It produces data files for all versions of Radar Contact, for FStarRC, and for several other programs. Version 5.10 is suitable for FS2002, FS2004, FSX, P3D and MSFS running on Windows 10. Documentation of the data files produced is included in the ReadMe, inside the ZIP. The program is free for anyone to use as necessary to support their own data needs, as well as users of the mentioned programs. |
| FSUIPC SDK | FSUIPC Software Development Kit for versions 3.999/4.80, authored by Peter Dowson, Pelle Liljendal and Chris Brett. Contiains very large list of FS offsets as well as source code examples for C/C++, Delphi and VB.Also contains FSInterrogate. (for FS2004, Prepar3D, FSX and FSX-SE). |
| vJoyOffsets | A utility program for linking FSUIPC Offset values to virtual joystick inputs. Requires the vJoy package provided by Shaul Eizikovitch. Authored by Peter Dowson, December 2019. |
PFC DLLincludes | PFC.DLL This program is an FS2000/FS2002/FS2004/FSX/P3D driver for the COM-port connected equipment produced by PFC (Precision Flight Controls Inc.) It handles the Throttle Quadrant Console, Cirrus II, Professional Flight Console, and the Jetliner, with options such as Pedals, Avionics Stack and the Remote Instrument Controller (RIC). July 20th 2020. |
| PFCHIDincludes PFCHID.DLL for FSX/P3D1-3, and PFChid64.DLL for P3D4, P3D5 and MSFS (FS2020) | An add-on for FSUIPC3, FSUIPC4, FSUIPC5, FSUIPC6 or FSUIPC7 to drive PFC's modern USB HID devices. July 20th 2020. |
| HidScanner | A little program for scanning connected (or even just Registered) Joysticks and other HID (Human Interface) Devices and providing full details. It can stay running and monitor changes too, if needed. |
| 64-bit Module User Kit | The 64-bit Module User Kit only. |
| 64-bit External User Kit | The 64-bit External User Kit only. |
Prepar3d 4.5
FSUIPC and WideFS for FS2004 | |
The version FSUIPC below is also compatible with the Microsoft Flight Simulator 9.1 UPDATE which was made available on October 9th 2004. Note that FSUIPC3 and WideFS6 are no longer supported. But a free Registration is provided: | |
| FSUIPC 3.999z9 | FSUIPC.DLL (FSUIPC3) replaces FS6IPC.DLL for use with FS2004. |
| WideFS6 | WideFS consists of WideServer 6.995, WideClient 7.156, and WideCloser 1.0.2. WideFS Links FS utilities over a LAN, without needing to have a copy of FS on the second computer. Works with FS2004. FSUIPC is required. Includes TCP/IP and IPX/SPX support. January 31st 2019. |
Prepar3d 4.5 Torrent
Prepar3d 4.4
Older Unsupported Utilities and Documents | |
| FS2004controls | Documentation about FS2004's keyboard and joystick control inputs. October 1st 2003 (17 KB) |
| FSUIPCRun Options for FSUIPC 2.94 or above | FSUIPC Run Options by Jos� Oliveira, this utility allows you to set the options for running programs via FSUIPC on the FS computer (please see the FSUIPC Advanced Users Guide). |
| AIBridge(link) | AIBridge by Jos� Oliveira, this priogram utilises the new feature in FSUIPC to inject Traffic information into the TCAS tables to add Multiplayer aircraft, so that these will show on TCAS radar displays and gauges. |
| EpicInfo 4.22 | EpicInfo is an incredibly useful module for anyone using an Epic together with FS. If you have an Epic just download it without any further ado. This version is compatible with both USB and ISA versions of the EPIC. |
| GFDisplay 1.30 | GoFlight display and indicator handler for registered FSUIPC users - November 27th 2009. |
| GPSout 2.61 | Provides GPS style output on a COM port, for connection to FliteMap, AutoRoute, or other atlases and moving map programs which accept standard NMEA 0183 format input. Note: For FSX this facility is part of FSUIPC4 and needs user registration. |
| AutoSave 1.501 | with FS2004 support. It will save flights ('STN' files) at regular intervals, so you can retry that crashed landing or quickly recover from other problems. Note: For FSX this facility is part of FSUIPC4 and needs user registration. December 24th 2004 (released Jan 2nd 2006). |
| Older non-English FSUIPC Documentation | French Docsby Fabrice Erdinger , Philippe Durand, and Sylvain Jub� (User Guide for Version 2.96) FSUIPC Module French Version 2.96by Sylvain Jub� |
| FS2002controls | Documentation about FS2002's keyboard and joystick control inputs. December 4th 2001 |
| FStarRC 2.31 | This package provides Jeppesen FliteStar/FliteMap (version 8 or 9) with a way to generate plans for FS2000/2002/FS2004, and .apl input files for direct use in JDTLLC's Radar Contact (all versions from 99 through 2.2 and including the current version 3). |
| FS2000ctls | Documentation about FS2000's keyboard and joystick control inputs. November 25th 1999 |
| EpicLink 1.05 | EpicLink allows you to link multiple EPIC installations on a LAN, under Windows control and using the IPX/SPX protocol. Includes the latest Epic.Vxd July 2000. For ISA EPIC cards only |
| FS98ctls | Documentation about FS98's keyboard and joystick control inputs. June 2nd 1999 |