I reseted my PC the other day and now the ENB Wrapper version's dll causes instant crash upon launching Fallout New Vegas. ENB Injector version will not work.
I have tested this on the vanilla launcher, nvse, and the newly updated 4gb launcher. No mods installed so far.

I need the ENB for it's fake full screen mode, none of the fake full screen mods on nexus (including game companion) is compatible with the newly updated Fallout New Vegas 4gb launcher.

v0.249 = instant crash
v0.216 = instant crash
v0.194 = instant crash
v0.173 = instant crash
v0.150 = instant crash
v0.118 = crashes before a save is loaded
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My rig
GPU: GeForce GTX 780 Ti
       GeForce GTX 780 Ti
       GeForce GTX 780 Ti
       GeForce GTX Titan Black (not activated)
CPU: Intel(R) Core(TN) i7-4930K CPU @3.40GHz
Memory: 64.00 GB RAM (63.92 usable)
Current resolution 1920 x 1080, 60Hz
Driver version: 337.88 (thinking about deleting it to see if the new update is the issue)
Operating system: Microsoft Windows 8.1 Pro
Gaming Volume (D:) = 3.53 TB free of 3.63 TB
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This problem has gotten in the way of the completion of the Fallout Graphics Improvement Project mod and the apocalypse mods i'm working on for VGU only, which I really want to finish. I've been working on these things for months now and this small tiny puny issue pushes me off the cliff. I did not have this problem before reseting my PC, which was using the same operating system. SLI is not the issue as well.

Please save my virgin PC. You can join the Tunnel Snakes! I'll be your best friend forever! Whatever you want. Just save my virgin PC before I reset her again.

Alright we'll get this sorted once and for all.

First what i want you to do is install NVAC: http://www.nexusmods.com/newvegas/mods/53635/?

It wont stop the crashes due to it being an ENB related crash but what i should do is generate a log file called nvac.log that may help point me in the right direction.

Next are you running any kind of overlay, gaming or memory effecting software at all? like afterburner, fraps, some kind of RAM cleaner or other game boosting programs?  

You say SLI is not the issue but ENB doesn't play nicely with SLI, ENB crashes due to SLI are very common issues for people, if you are running SLI try and temporally disable it and see what happens, if you've already done this i apologize.

If any of that isn't applicable we'll try something different.

I hope this help.

PS: Sorry if my responses in this thread are delayed, i am not very well right now so my ability to respond quickly may be effected.

Thank you for helping out, Hitman.

This is what the log file contains after the ENB crash:
11213611 _ NewVegasAntiCrash FalloutNV.exe
11213611 _ 03030000 06040000 nvac.dll
11213611 _ 6E380000 75611175 quartz.dll
11213611 _ 09C50000 04020030 nvse_1_4.dll
11213616 h 6DFA57FA 8B088B51 d3d9_sweetfx.dll
11213616 h 6DFA57FC 8B512468 d3d9_sweetfx.dll
11213616 n 00000000 6DFA5809
11213616 r 01000000 0000001B FalloutNV.exe
11213616 ñ 01000000 00000000 FalloutNV.exe
11213616 r 01000000 00000003 FalloutNV.exe
11213616 ñ 01000000 6DFD6914 FalloutNV.exe
11213616 r 006C6C64 00000082 FalloutNV.exe
11213616 v 006C6C64 FF68283C FalloutNV.exe
11213616 u 006C6C64 C0000005 FalloutNV.exe

I am not running any overlays, I have also double checked in task manager just in case.

I have disabled SLI and I am still receiving crashes as soon as the game launchers.

Even if I don't find a solution for this, you've done more than enough. Thank you for the help.

I had a similar issue with Morrowind of all things, using the graphic tool that takes away the fog and gives you the entire worldmap. Worked perfectly for a long time, an entire playthrough of one of my longest characters, and then boom. No workie without crashy-crashy. Never been able to get it ti work again since.

Hope you get this sorted.

Woah now that's not something i would of expected, it seems the crash originated in SweetFX not ENB.

What ENB are you trying to use? so i can go and check to see what version of SweetFX it uses, if it's a newer version that might explain the crashes.

Edit: Well actually technically the SweetFX crash was stopped by NVAC, the real crash was an error in FNVs code somewhere, however the SweetFX error happening so soon may of thrown the game off a bit causing the game to crash anyway, so the problem is probably still with SweetFX.

@Alixen

I am not familiar with Morrowind graphics mods and due to there complex nature compered to ENB troubleshooting them is going to be difficult.

However i can always take a look and see what i can dig up, whats the exact name of the mod you are using?

Nah, its fine thanks man, I spent months at the time trying to sort it, and nothing worked. Was just commenting. I'm sure in the future i'll get it working again, probably after a hardware upgrade.

Thank you for your insight. It's a custom version of Onix ENB, i only edited it's lighting, bloom, and lenz effect.

Do you recommend to reinstall New Vegas?

There is no need to reinstall New Vegas, it's very unlikely that would help with this, we'll try it as a last resort.

What i want you to try is open the enblocal.ini and set the line EnableProxyLibrary to false, save the file and try the game.

See if it still crashes, if it doesn't its SweetFXs fault and I'll send you some alternative files that should work.

Fingers crossed this works.

No luck. I changed the settings of enb local files, even removed everything that contained SweetFXs in it's name. Tried it out with all the launchers, the game still crashes as soon as you launch it.

Damn.

Can you provide a NVAC log of what happens without SweetFX?

Edit: Would you be willing to try the older nvse 4gb enabler that i use?

I've heard some people have had better luck with it on Windows 8 + ENB with windows 7 compatibility mode.

Its a long shot but you never know.

Edit 2 Edit Harder: Never mind about that last part, i was confused for a second, sorry.

Here's the report
12040746 _ NewVegasAntiCrash FalloutNV.exe
12040746 _ 033A0000 06040000 nvac.dll
12040746 _ 6D7F0000 776A1175 quartz.dll
12040746 _ 0AE50000 04020030 nvse_1_4.dll
12040747 v 0CDD79A5 FF430C8B d3d9.dll
12040747 u 0CDD79A5 C0000005 d3d9.dll

It's all good. I still tried your compatibility mode suggestion, if anything it made it crash quicker lol

Well at least that proves that it's definitely an ENB crash, haha

Ok i have been looking into it even more and the one thing that keeps coming up is the injector version, can you remind me exactly how it doesn't work?

Next thing i want you to do is try the injector again.

Create a short cut to the fnv4gb.exe and add this to the target as a command line: -extradll enbseries.dll  

This is different to what we tried yesterday.

Try that, don't forget to run the injector and keep it running while you play.

Edit: also don't forget to add fnv4gb.exe to the process list in the enbinjector.ini

Edit 2: can you tell me what the exe in the exes folder is called? i can't remember. haha

Edit 3 Edit with a Vengeance: i just read that someone has been running Game companion with Win8, NVSE, 4bg and ENB all at the same time, so it must be possible, just gotta figure out the order of things.

This is the target of the launcher I created, " "D:\Steam\SteamApps\common\Fallout New Vegas\fnv4gb.exe" -exe FalloutNV.exe -laaexe .\FalloutNV.4GB -SteamAppId 22380 -extradll enbseries.dll ." (Without the period, just felt like finishing the sentence.)

Here is the process list.
[TARGETPROCESS]
ProcessName0=FalloutNVLauncher.exe
ProcessName1=FalloutNV.exe
ProcessName2=nvse_loader.exe
ProcessName3=fnv4gb.exe
ProcessName4=
ProcessName5=
ProcessName6=
ProcessName7=
ProcessName8=
ProcessName9=
ProcessName10=
ProcessName11=
ProcessName12=
ProcessName13=
ProcessName14=
ProcessName15=

I ran the enbinjector.exe, but the ENB remains absent. When you launch New Vegas, it doesn't even indicate that ENB is enabled.

The exe in the exe folder is named FalloutNV.exe .

Did you try with the injector files in the exes folder?

Edit: I must admit I'm rapidly running out of ideas here, not gonna give up anytime soon though.

Yes, I have Hitman. I've edited both ini files and ran both ENBinjectors. I want to take the problem to the enb site, but a lot of the posts there are ignored and whenever I see boris respond to one, he talks shit.

Boris doesn't mean anything by it, that's just his way.

Also Boris isn't actively developing ENB right now due to personal issues, so it's unlikely you will get a resonance that isn't something like "Bad Drivers or Crapware, can't do anything about it"

You see windows 8 is not technically supported by ENB at all, so anything involving it is complicated.

You could try to get some help there if you want to, that's where the experts are, just don't expect much.

I'm going to continue looking into it, there has got to be answers somewhere.

Edit: Also update DirectX 9.0c if you haven't already.

I'm going to get Windows 7 anyway. I'm tired of this windows 8 crap. It's random as hell, it was working before I reseted my system. Like Alixen said on this thread, poof it stops working. I've waited 5 days already to get this working, I can do one more for a windows 7 disc.

Thank you for the help, Hitman. I really appreciate it.

That's alright, i am sorry i failed to fix it.

If some how for some insane reason it doesn't work on windows 7 let me know, I'm sure i can fix it on Win7 if needed since i use it myself.

I hope you get it sorted.

Switched to Windows 7, same problem still exists.

Wow seriously? i don't even know how that's possible.

What exactly doesn't work, ENB not showing or crash on start up?