Hi all!
I am having trouble converting ground textures in fsx.

Replacement Ground Autogen Textures:

This will convert all the ground textures from 1024×1024 to 512×512. Unless you have a 256 meg or 512 meg video card, you’re probably not going to be able to use the full resolution 1024×1024 textures anyway. The 512×512 textures are 170k each, compared to 682k each for the 1024×1024 textures. The other bonus from doing this is the initial load of the sim is much quicker and there should be a lot less hard drive activity required when flying around. So here are the steps:

1) Backup your C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\World\Texture folder. You’ll get 4 gigs back after the conversion is done.

2) Download NConvert at the XnView website. It’s freeware.

3) You must have Imagetool.exe from the FS SDK. If you have Deluxe Edition of FSX, you’ve got it on your DVDs if you install the SDK. Otherwise you can get it from the FS2004 Terrain SDK. I’m pretty sure the FS2004 version of Imagetool.exe will work.

4) Download and unzip this small bat file.

5) Copy ImageTool.exe, nconvert.exe and the bat file into your C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\Scenery\World\Texture folder. Note that this will work no matter what folder you installed FSX to.

6) Run the bat file. It will only process the ground textures. It won’t do anything with any of the other textures or any other folders. Feel free to open the bat file with a text editor to see exactly what it’s doing. You’ll see that it uses nconvert.exe to resize each texture then ImageTool.exe to add back in the mip maps and convert to DXT1. Note that this will probably take at least an hour to process everything. There are about 6,700 textures to process.

7) That’s it.

I downloaded all that the directions said .  I can't get the files converted.  Any gurus out there know how to do this. I know I am doing something wrong . Help please . I would appreciate it . Thanks
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Thanks Roller ball I will not do that tweak I will have to find other tweaks .  I am only getting 10 fps .  not to good .  I have done all the autogen tweaks .  any one have any other suggestions . I also did the water and cloud tweaks. ready to scrap fsx.

COMPUTER SPECS
2.5 GIG PROCESSOR
1.5 GIG RAM
NIVIDIA  6600

ANY OTHER SUGGESTIONS WILL BE APPRECIATED

Hi Gix, I can only repeat what Phil Taylor of ACES said. They have been assessing all of the tweaks that people have been proposing and he specifically said that they do not recommend doing this one because of the severe degradation that would result. His words, not mine  ???