No, I had the same thing happen. Same exact hotfix.exe.

The fix works, but it starts loading a ton of trojan viruses in the background. Among them is one that overhauls your start-up with a fake anti-virus software you can't minimize on your next re-boot.

This DLL was obviously modified to include malware. Do not use it.

No, I had the same thing happen. Same exact hotfix.exe.

By the way, for those that end up infected with the fake anti-spyware, hit ctrl+alt+delete and open task manager, then go file..new task and type in "explorer". That will get you your shell and you can start removing your spyware

No, I had the same thing happen. Same exact hotfix.exe.

The fix works, but it starts loading a ton of trojan viruses in the background. Among them is one that overhauls your start-up with a fake anti-virus software you can't minimize on your next re-boot.

This DLL was obviously modified to include malware. Do not use it.

Why am I finding this hard to believe? (Not trying to say you are lying, but....)

I've yet to see anything of the sort. Seems like a discriminatory infection if true. :shrug:

No, I had the same thing happen. Same exact hotfix.exe.

The fix works, but it starts loading a ton of trojan viruses in the background. Among them is one that overhauls your start-up with a fake anti-virus software you can't minimize on your next re-boot.

This DLL was obviously modified to include malware. Do not use it.

Why am I finding this hard to believe? (Not trying to say you are lying, but....)

I've yet to see anything of the sort. Seems like a discriminatory infection if true. :shrug:

Was the first thing I tried, it did not solve the problem, just left a black background. The fake anti-virus also manifests in safe mode.

Are you sure you weren't infected by the advertisemant that megaupload launches when you download the file?

This is what pops up when you download the file from megaupload:
http://i.imgur.com/S3FrS.png

Erm. The virus you got is from the Megaupload popup. Click "Don't run" next time.

I did not download, run, or install anything from Mega-upload. If it came from the site and not the DLL, it never prompted me in any way.

I have to ask which os you were using.

No, I had the same thing happen. Same exact hotfix.exe.

The fix works, but it starts loading a ton of trojan viruses in the background. Among them is one that overhauls your start-up with a fake anti-virus software you can't minimize on your next re-boot.

This DLL was obviously modified to include malware. Do not use it.

Are you sure you didn't get it from an ad on the site? I have all kinds of adblockers and stuff installed, so I got no ads.. Downloaded the .dll and ran New Vegas, and the only hotfix.exe file that exist anywhere on my hard drive is a system file that's required by .NET framework. NOD32 hasn't detected any odd behavior from the file.. (The heuristics should pick up if it was creating external files or attempting to change the registry.)

Admin Note: Please be aware that downloading files from unknown sources is dangerous and potentially harmful to your computer.

ok so, first download the dx9.dll from the following link
http://www.megaupload.com/?d=6LHPT9ZC (has been scanned and confirmed to be safe)
and place it in your "steam/common/fallout new vegas" directory
thats it. for me and at least many other persons (at the time of this writing) gpu usage has gone up and npc slowdown as well as general framerates have improved. try it out and lemme know if its working for others.

for those of you worried about downloading a random link some stranger posted (dont blame you) you can find the dx9d9.dll on your computer here


"C:\Windows\winsxs\x86_microsoft-windows-directx-direct3d9_31bf3856ad364e35_6.1.7600.16385_none_c223c2c8c219cb6a

Just search your C:\Windows folder and it will pop up MS's version directly from DX and MS. " (could break fraps) -thanks wolfpup


also to give credit where it is due,i found the dll here initially http://segmentnext.com/2010/10/19/fallout-new-vegas-errors-crashes-freezes-fixes/

Yes like I said it's perfectly possible it was a bad ad or something on the download site, either way be ginger with the fix. It DID fix my FPS problems, so there's that.

I'm fairly positive a local file from your hard drive will not fix the issue, since this "fix" is not an acutal directx dll in any way, it seems to be a shim that replaces a few calls to directx and passes the rest through.

It didn't happen for me until I hit save game, and I instantly got a report from microsoft security essentials. Try installing securiy essentials and enable real time protection, then try saving a game.

Not sure what exactly I have to gain by posting a fake warning against it?

I have not had any viruses or issues in over a year. I played New Vegas all day yesterday with no virus problems. Today I downloaded the "hotfix", placed it in the correct folder, and played New Vegas (which ran much smoother on The Strip & in group combat). An hour later I got a huge barrage of trojan warnings, the PC restarted on it's own, and now it loads a fake Anti-Virus software fullscreen on every boot.

Maybe it targets certain OS's, or certain anti-virus software, or triggers based on a restart or amount of time. All I know is you don't want to be stuck in the situation I am, so why risk it.

I've found a working link for the original file from back in the day. It also explains a little better the function of the file and as to why I don't think the other versions of the file will work.

No popups from what I can tell. In raw form so you can cut and paste to your heart's delight! Just in case.

http://www.oldblivion.com/sm/index.php?action=printpage;topic=6928.0