Hello Pete I'm running 4.929 now. Here're the INI and Button & Event log files. I just ran FSX a very short time to select and deselect Parking Brakes.
[General]
UpdatedByVersion=4929
History=RH8WACPNLX4GQIXXATM7R
InitDelayDevicesToo=No
NewInterceptTextMenu=No
UseSystemTime=No
UseMidMouseBtn=Yes
MouseWheelMove=No
MouseWheelTrim=No
MouseWheelTrimSpeed=1
JoystickTimeout=20
PollGFTQ6=Yes
BlankDisplays=No
FixControlAccel=No
FixMachSpeedBug=No
DeleteVehiclesForAES=Yes
AutoScanDevices=Yes
VisibilityOptions=No
OneCloudLayer=No
CloudTurbulence=No
CloudIcing=No
GenerateCirrus=No
SuppressCloudTurbulence=No
MaxIce=-4
MinIce=-4
UpperWindGusts=No
SuppressWindTurbulence=No
SuppressWindVariance=No
WindTurbulence=No
TurbulenceRate=1.0,5.0
TurbulenceDivisor=20,20,40,40
SuppressAllGusts=No
MaxSurfaceWind=0
WindLimitLevel=200
WindDiscardLevel=400
WindAjustAltitude=No
WindAjustAltitudeBy=2000
SmoothBySimTime=No
WindSmoothing=No
WindSmoothness=2
WindSmoothAirborneOnly=Yes
PressureSmoothness=0
TemperatureSmoothness=0
DisconnTrimForAP=No
ZeroElevForAPAlt=No
ThrottleSyncAll=No
WhiteMessages=No
ShowPMcontrols=No
SpoilerIncrement=512
MagicBattery=No
RudderSpikeRemoval=No
ElevatorSpikeRemoval=No
AileronSpikeRemoval=No
ReversedElevatorTrim=No
ClockSync=No
ClockSyncMins=5
ClearWeatherDynamics=No
OwnWeatherChanges=No
TimeForSelect=4
LoadFlightMenu=No
LoadPlanMenu=No
PauseAfterCrash=No
BrakeReleaseThreshold=75
SaveDataWithFlights=No
ZapSound=firework
ShortAircraftNameOk=Substring
UseProfiles=Yes
EnableMouseLook=No
DelayedMouseLookZoom=No
AxesWrongRange=No
TCASid=Flight
TCASrange=40
AxisCalibration=No
DirectAxesToCalibs=No
ShowMultilineWindow=Yes
SuppressSingleline=No
SuppressMultilineFS=No
AxisIntercepts=No
DontResetAxes=No
InitDelay=0
GetNearestAirports=Yes
OOMcheck=Yes
WeatherReadFactor=2
WeatherRewriteSeconds=1
CustomWeatherModify=No
SimConnectStallTime=1
LuaRerunDelay=66
Console=No
FSVersionUsed="Microsoft Flight Simulator X",10.0.61472.0
SimConnectUsed=10.0.61259.0
[JoyNames]
AutoAssignLetters=No
0=Button Box Interface
0.GUID={EC941400-8BD1-11E3-8003-444553540000}
1=CH THROTTLE QUADRANT
1.GUID={EC4EA690-8BD1-11E3-8002-444553540000}
2=CH PRO PEDALS USB
2.GUID={EC193EB0-8BD1-11E3-8001-444553540000}
3=CH FLIGHT SIM YOKE USB
3.GUID={746E5E30-8BD2-11E3-8001-444553540000}
[buttons]
ButtonRepeat=20,10
1=P0,8,C66241,0
2=U0,8,C66241,0
3=P1,5,C65752,0
5=P1,4,C65752,0
6=P1,6,C65759,0
7=P1,7,C65758,0
8=R1,11,C65607,0
9=R1,10,C65615,0
[AutoSave]
Next=1
Interval=60
Files=10
SaveOnGround=No
AutoSaveEnabled=No
[GPSout]
GPSoutEnabled=No
[GPSout2]
GPSoutEnabled=No
[WideServer]
WideFSenabled=Yes
[sounds]
Path=H:\FSX\Sound\
Device1=Primary Sound Driver
Device2=Speakers (Realtek High Definition Audio)
Device3=Realtek Digital Output(Optical) (Realtek High Definition Audio)
Device4=Realtek Digital Output (Realtek High Definition Audio) ********* FSUIPC4, Version 4.929 by Pete Dowson *********
Reading options from "H:\FSX\Modules\FSUIPC4.ini"
Running inside FSX on Windows 7
Module base=6E900000
User Name="FTP"
User Addr="@gmail.com"
FSUIPC4 Key is provided
WIDEFS7 not user registered, or expired
515 System time = 02/02/2014 19:25:04
515 FLT path = "C:\Users\thomas\Documents\Flight Simulator X Files\"
531 Trying to connect to SimConnect Acc/SP2 Oct07 ...
531 FS path = "H:\FSX\"
656 LogOptions=00000000 00000001
656 SIM1 Frictions access gained
656 Wind smoothing fix is fully installed
656 G3D.DLL fix attempt installed ok
656 SimConnect_Open succeeded: waiting to check version okay
656 Trying to use SimConnect Acc/SP2 Oct07
1607 Running in "Microsoft Flight Simulator X", Version: 10.0.61472.0 (SimConnect: 10.0.61259.0)
1607 Initialising SimConnect data requests now
1607 FSUIPC Menu entry added
1638 C:\Users\thomas\Documents\Flight Simulator X Files\Welshpool.FLT
1638 H:\FSX\SimObjects\Airplanes\beech_baron_58\Beech_Baron_58.AIR
276465 Aircraft="Beech Baron 58 Paint1"
276481 System time = 02/02/2014 19:03:34, Simulator time = 19:06:01 (18:06Z)
281099 Starting everything now ...
281099 Using "E:\GoFlight\GFDEV.DLL", version 2.2.2.0
282393 Advanced Weather Interface Enabled
303703 LogOptions changed, now 60000000 00000001
307510 *** EVENT: Cntrl= 65758 (0x000100de), Param= 0 (0x00000000) FLAPS_INCR
307556 Button changed: bRef=0, Joy=1, Btn=5, Pressed
307556 [buttons] 3=P1,5,C65752,0
307556 FS Control Sent: Ctrl=65752, Param=0
307556 *** EVENT: Cntrl= 65752 (0x000100d8), Param= 0 (0x00000000) PARKING_BRAKES
308149 Button changed: bRef=0, Joy=1, Btn=5, Released
311519 Button changed: bRef=0, Joy=1, Btn=4, Pressed
311519 [buttons] 5=P1,4,C65752,0
311519 FS Control Sent: Ctrl=65752, Param=0
311519 *** EVENT: Cntrl= 65752 (0x000100d8), Param= 0 (0x00000000) PARKING_BRAKES
311519 *** EVENT: Cntrl= 65759 (0x000100df), Param= 0 (0x00000000) FLAPS_DECR
311940 Button changed: bRef=0, Joy=1, Btn=4, Released
323734 LogOptions changed, now 00000000 00000001
329506 System time = 02/02/2014 19:04:27, Simulator time = 19:06:25 (18:06Z)
329506 *** FSUIPC log file being closed
Average frame rate for running time of 25 secs = 22.3 fps
G3D fix: Passes 5163, Null pointers 0, Bad pointers 0, Separate instances 0
Memory managed: 13 Allocs, 13 Freed
********* FSUIPC Log file closed ***********
Thanks fredpop