Downloaded 4gb patch from http://www.ntcore.com/4gb_patch.php after reading some threads on blurries here. It's a minor problem with some slow loading mountain textures on my Asus laptop, which has 10gb memory. After unzipping and trying to open, I get a "cannot open executable file" error message (Win 7 64 bit). Any advice on if this is valuable in helping the old FS9 better utilize memory and how I can open it? Tried re-downloading, etc, with no success.Thanks for any ideas!Roy

Follow this route: http://forum.avsim.net/topic/230046-out-of-memory-error-cured-for-me/page__view__findpost__p__1466091

Follow this route: http://forum.avsim.n...ost__p__1466091

No need to mess with Boot.ini files if you run 64 bit windows. You just need to patch the FS9.exe file.

No need to mess with Boot.ini files if you run 64 bit windows

Absolutely right, Graeme!I have just missed the W764 part of the OP's post... :(

Thanks Rafal for many helpful posts including to my challenge, and also Graeme, not that tech savvy but got it patched!Roy

Isn't the 4GB Patch only für 64bit systems? Let me quote from http://www.ntcore.com/4gb_patch.php:"This very little tool patches x86 executables in order to let them have 4GB (instead of only 2) of virtual memory on x64 platforms."(Underlined by myself)And:"On x86 applications have 2GB of virtual memory out of 4GB (the other 2GB are reserved for the system). On x64 these two other GB can now be accessed by 32bit applications."(again underlined by myself)So makes it sense to apply this patch at x86 systems as mine (WinXP Pro SP3?) at all without harming the system itself?Sorry for my question, as I have some experience with FS2004, but almost none with operating systems.Thank you for your advice.

Sorry for my stupid post of Wednesday. I totally forgot editing boot.ini with the /3GB switch etc. However - I tried it following the above recommendations, and it made more promlems than that it helped. I suppose that my video card - a AMD Radeon HD 6570 with 2048 MB memory - needs so much ressources, that /3GB is useless on my system (I had to replace the old video card and my PC dealer recommended these to have equivalent performance, but it seems as the new card is too good for my system (4GB RAM, 2,9 GHz AMD Athlon Dual Core, WinXP SP3).After activating /3GB switch with /userva=2560 I experienced momentarily coloured bricks on my screen; after the desktop was finally showed correctly, the PC seemed to "switch something forward and back" in graphics and slowed down generally. Starting FS9 I was showed a message citing incompatibilities with 3d setting, that I ignored at first. When FS9 was finally startet, I had 5 fps in average and decided not to use /3GB switch anymore. I have to admit that I have OOM very very seldom.Can anybody say what I would have to change, especially in graphics settings inside and outside FS9?

What you need to change is your operating system--with that hardware you need to make the step to 64-bit. FS running on a 2GB video card in a 32-bit OS is very likely going to be some real a** pain.

Thanks, so "Sacrifices have to be made" as Otto Lilienthal said.