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Direct Link To This Post Topic: IMPORTANT: Read Before Purchase 737NG
    Posted: Jul-10-2014 at 7:51am

FS2004 users please take note: official support for FS2004 products has ended.:



NOTE:   The iFly 737NG is now about 10 years old and during that period the software has received major updates at no cost to users.  Since the last update, SP3.2.1, the aircraft has received some fixes/features in SP's 3.2.2, and   Users should expect that any item not currently modeled or not correctly modeled will stay as is.  The software is now at end of life and soon will be in the legacy product category.  We will continue to provide support via this forum to the current version of the iFly 737NG.


Taking the time to read these instructions prior to your purchase of the software will produce a smooth transition to the exciting world of the iFly 737NG simulation.  The other side of the coin is also true:  not following the directions will produce no end of trouble.


Before you start downloading the files from the Flight1 servers please make sure you prepare your pc as follows


1. Turn off Antivirus Software. 


2. Turn off Windows Defender. 



3.  Windows 10 users turn off “Real Time Scanning” in Windows 10 Security.


4. For Vista, Windows 7 and Window 8 or higher, set UAC (user account control) to the lowest level and leave it there.



5. Vista, Win7, Win8, Win10 users must run the Flight 1 Purchase Agent for FSX and P3D or the FS2004 Installer and then the Config tool created by the install as Administrator. (right click the executable file or desktop shortcut and select option "Run as administrator")


6. It is also very important not to install P3D, FSX, FS2004 or any add-on product in a "windows protected area"

That will be places like:
\Program Files
\Program Files (x86)


\Program Data


If you do install in such a location, your flight simulator must run “As Administrator”.


7. Read IMPORTANT information about the product installers to avoid frustration and confusion here:


8.  IMPORTANT:  The Flight Simulator Folder must be excluded from antivirus scans.  This will prevent aggressive scanning from removing required components from the iFly software installation.







The FS2004 product is installed with the traditional Flight 1 Wrapper.  Download the base version installer from the Flight 1 product page,   http://www.flight1.com/products.asp?product=iflyfs9, right click the Red Airplane on your desktop and select “Run as Administrator”.  After purchasing the software, the installer will run.  Point the installer to your preferred location for the installation.




The FSX and P3D products are installed with the Flight 1 Purchase Agent:
(make sure you right click the executable file or desktop shortcut and select option "Run as administrator")



For FSX and P3D:  install FSUIPC.  Otherwise the iFly advanced braking system and TCAS will not work.  The FS2004 Installer includes FSUIPC.

Always download the latest version from Pete Dowson’s support forum:





1. We do not officially support any version of Windows 8.

Please note that P3D does not always work well with Win8 or 8.1.  Win8 triggers the compatibility assistant (rundll32.exe process) to run on P3D.exe in the back ground non-stop, which uses around 11% of CPU resources. This will of course affect overall performance of the pc and the running other applications.  Results may differ from pc to pc.


2. iFly products and Flight1 installers no longer work for those using CD4 in the Rom Drive, or a Virtual Copy of it in a Virtual Rom Drive, to start FS2004.


Due to changes to Windows 8 and 10, and also with an updated Windows 7, which block the use of a CD to authenticate and start a game, it was necessary for iFly and Flight1 to adapt our security system to function with Microsoft’s changes.


Customers using Windows XP SP3, Vista or Windows 7 SP1 without the Microsoft update who are still able to start FS2004 with CD4, or a virtual copy of it, will not be able to use the revised iFly Products in Flight1 Installers.


There is a very easy workaround for this, which may be found by an internet search (how to start FS9.1 with no-cd option / patch).  Licensed users may see this  thread: http://ifly.flight1.net/forums/forum_posts.asp?TID=14817&title=solved-windows-81-and-fs9


After installation and prior to loading the iFly 737, register for forum support as outlined here http://ifly.flight1.net/forums/forum_posts.asp?TID=12&title=how-to-get-access-to-the-licensed-member-area then read all the pinned topics in the forum where support for your version is provided.

Final Step:  Go to the support forum for your product to download and install the most recent Service Pack.  Please be certain to follow the directions contained in the posts.

IMPORTANT:  We support only the most recent versions of iFly software.


Happy iFlying!



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