http://timeslip.users.sourceforge.net/exeopt.html

Rex, it didn't affect the MCP patches, but you do need to apply all patches before using the 4GB patch, otherwise MCP probably won't recognize the morrowind.exe, depending upon whether the 4GB patch changes whatever it is MCP looks for to be certain it is patching an unaltered .exe.

OK, where does this file go? When I open this file it goes to the MW folder. What am I missing? Were is the read-me? Thanks!

The 4GB patch instructions are on the download webpage. It wasn't written specifically for Morrowind, but for any .exe that doesn't recognize more than 2GB RAM. You can run it from anywhere on your computer and then navigate to the file you want to path from within the GUI.

I can safely say that this patch is highly recommended for anybody on a 64-bit OS with more than 4 gigs of RAM. I used it on a different game that would crash after about an hour of play and after the patch, it didn't crash at all, nor did it display any of the problems I used to have before the patch. I don't think it will work on a 32-bit OS because they're capped at 4 gigs of RAM and anything higher than that is wasted. Windows 7 might be different, but I doubt it. Seeing as how 64 & 32-bit OSes use different memory addressing systems, I wouldn't use it on a 32-bit system.

Agreed, I wouldn't really recommend it for 32-bit operating system users, but if used with the /3gb boot switch you can have it address up to 3gb of RAM. With 64-bit operating systems, there are no down sides, no special switches needed, and the application can address up to 4gb of RAM.

Gotcha. Thanks!

Why stop at 4? Would we also not benefit from 6?

Well the patch is probabbly a bit aged, when more than 4 gigs were surely not neccessary.

Heck, with triple channel memory available now, why not 12?

Um, yeah. 32-bit programs can only address 4GB because that's what fits in 32 bits.

I thought 32-bit OS couldn't use more than 3? Can it use up to four, and then 64-bit OS can use more than 4? :unsure2: I'm confusing myself...

No I think your right.
32 bit can't detect 4gigs.

http://www.codinghorror.com/blog/2007/03/dude-wheres-my-4-gigabytes-of-ram.html has a decent explanation about 4gb of memory on 32-bit systems.



And yeah, 4gb is the end of the line for Morrowind.exe, even on a 64-bit sytem. Even with the large address aware flag, it is still a 32-bit program, and thus can still only access 4gb. Still, 4gb has been plenty for me so far. If you start to run into trouble with memory at that point.... tell me where you're getting all those mods from, because I must be missing a fair few!

Nice link. I made some tests when beta testing Vista's RCs back then. This memory problem was a real issue. The more your video card has RAM, the more it eats from your system RAM. This weird problem is minimal like 2 MB system reserved space with an x64 OS.

Ugly 32-bit grayness
http://www.sevenforums.com/attachments/news/167d1225575983-windows-7-resource-monitor-windows-7_resource-monitor.jpg

good looking x64
http://i39.tinypic.com/mafarr.jpg

Also I can confirm 7 and Vista is pretty smart to load Morrowind files to that stand-by area(SuperFetch). I don't get loading screens between cells thanks to MS.

Hmm. In that case is it it likely that engine rewrites like Open Morrowind and project Aedra might be able to accommodate more than 4GBs of RAM?

Interestingly enough, the first change I noticed this program made, was that Morrowind got considerably brighter in Window Mode. From being pitch black to being regular. Wonder why that is...

Lol. I was just on my way here to the forums after manually changing the Morrowind.exe header to be large address aware (which fixed my "random crashing" problem which has plagued me since 2003), in order to tell the public about this amazing discovery.
Oh well, good to know others have jumped on that bandwagon before I thought to.