I'd like to add my two bits to this topic.
First time I installed AS_Heathrow I actually did a flight from EDDF to EGLL. Level-D, ActiveSky, GEPro, RC4.No trouble at all except for stuttering and textures taking forever to load as I was on VERY short finals. This was with the hi-res textures installed.
Next time I tried, I got the crash. I tried re-booting etc but still kept getting the error. I always begin with the default flight then switch aircraft and move to my departure airfield.
I un-installed and reinstalled the scenery (with low textures this time and after having gotten rid of anything remotely not bog-basic EGLL -such as Gary's Heathrow Pro which I had been using for MANY years- and any afcads I could find). No joy.
The interesting part begins now, however.
With AS_Heathrow installed I cannot even get INTO FS9! When I delete it, FS9 starts fine. Also...when AS_Heathrow is installed I cannot access the Add/Remove option from the control panel to uninstall. I manually delete it then, presto, Add/Remove works just fine. As Alice would say..."curioser and curioser..."
Hope this is some more info Oliver can use!
P.S. Computer specs:
ASUS P5WD2-E Premium mobo
Intel Duo 940 (3.0GHz)
2GB ram (Kingston)
Asus X1600 radeon Pro (512MB)
Creative Audigy 2 soundcard
3 hard drives
All software is up to date, latest drivers, etc etc.
FS9.1 /Win XP Home SP2