ALCON I have been getting several window.dll CTD over the course of several days now.  It doesn't matter what aircraft I use or what scenery I use.  The only thing that I have noticed where it has worked was on short flights under 3hrs.  All long flights do not work.  I get the window.dll CTD while on approach and under F/L100.  I have tried a variety of flights, aircraft, and sceneries, all the same result.  I am going to try taking out the vysnc tweak for windowed mode, to see what happens.  Additionally I have kept an original copy of the window.dll file from the original install and upon completion of all the addons install.  I continue to get the same result no matter if I switch both of those files or not.  Any help in this area would be much appreciated, thanks and have nice day.  Please let me know if you have any questions.

 

Operating System: Windows 7 Home Premium 64Bit

RAM: DDR3 SDRAM

CPU I7 3770K OC 4.5GHZ (running on air cooling via Thermaltake Frio OCK, I am active duty and move a lot so using LC is not a good option for me.  Stress test show 4.6 obtainable OC and sustainable.)

RAM size: 16GB @ 1866 (CL9)

Graphics Nividia 670GTX OC

Hard Drive

C: Main Windows Drive 111GB SD

B: 931GB 7,200 RPM Mega Scenery Drive

D: Backup 465 GB 7,2000 RPM

E: FSX Main Drive 931GB 7,200 RPM

 

My frame rate is locked using internal at 35FPS

 

I have also used both the AVSIM Guide and KOTSA guide for tweaks and setup through the CFG and NI

 

Addons

REX, PFPX, Active Sky, Aerosoft PFE

 

Scenery

FS Dream Team

KLAX, PHNL, KLAS, KJFK, KORD

 

Flight Beam

KIAD, KSFO, KPHX, KDEN

 

Imagine Sim

KATL, KCVG, KDEN, MYNN

 

Aerosoft

EGLL, EDDF

 

Fly Tampa

KTPA, KBOS

 

Latin VFR

KMIA, KSAN

 

Other

KMCO, RKSI, RJAA

 

Aircraft

PMDG

737, 747, J-41, 777

 

QWings

757

 

Level D 767

 

Majestic Dash 8

 

Captain Sim

727, 737, 707, 767

 

Fell There

E-145, CRJ 200,700,900

Window.dll - The window.dll in the main FSX folder is used by FSX to take advantage of the capabilities of DirectX9. When using DirectX9, FSX calls on the window.dll module's functions to automatically minimize, maximize or restore the FSX window. For instance, the function 'WindowInit' is called to whether the window is currently minimized or maximized. The 'WindowFree' function can set the focus on the window and check whether the window has current focus. The dll has many more functions. This error has been fixed by reinstalling video card drivers (WHQL – no BETA).

 

Best regards,

Try stop using PFE and see if that stops the error happening, the only time I get this crash is when using PFE (I think). If you can also confirm it doesn't crash then it might be worth bringing it up with Oncourse Software they might be able to fix it.

Hopefully the OP fixed his issue long, long ago but thanks for your input.

 

Best regards,