Installing nvac
Author: q | 2025-04-24
Install NVAC; Remove Mods that change the CC; Fix your Load Order; NVAC. I recommend using NVAC [www.nexusmods.com] in any circumstance. NVAC stands for New Vegas Anti-Crash
Installed NVAC properly? :: Fallout: New Vegas General
From OutputDebugString calls.";" entries are output from the game's own error checking.Note to mod developers:I'd highly recommend disabling NVAC (via your mod manager or by removing nvac.dll from your Data/NVSE/Plugins folder) while developing mods to make sure NVAC doesn't suppress any crashes that your mod causes and that could be solved on your end.Changelog:7.5.1.0- Fixed compatibility for automated install alongside TTW when using Mod Organizer. Thank you DarianStephens.- No change to nvac.dll (compared to 7.5.0.0).7.5.0.0- Win10AU fix.- Added support for installation via mod manager for Fallout 3, Oblivion and Skyrim.- Added Windows version to log output.- Added support for address 00B57AA9.7.4.0.0- Internal code cleanup and minor refactoring.- Added naive thread safety for log output to avoid rare mangled log output.- Added heuristic detection support for TEST instructions.- Added heuristic detection support for more x87 FPU instructions.- Added heuristic detection support for MOVSW & LODSW instructions.- Added support for a Havok physics crash related to address 00C670CE.- Added support for an NVSR variant of InterlockedCompareExchange.- Improved logging in case of a specific exception in ntdll.dll.- In-game console command to toggle log output to console (type "nvac" in the console).- Memory purge via PCB added to exception recovery attempt for address 00AA55A6.- Added exception handling during plugin load.- Changed some "!" log entries into "_" to reflect their informative as opposed to exclamatory nature.- Inlined more helper functions.- Refined more helper functions.- Added capability to force loading of a specific shader package; if Data\Shaders\shaderpackage%03i.sdp exists, it will override others.- Added CrashSave generation; under certain conditions, a save will occur when NVAC can't prevent a crash.- CrashSaves have a "CRASH" label in the Load game menu (without NVAC they will have a "SYS" label).- CrashSaves should only be used as a last resort (in some circumstances they can contain bad data, like invalid player FaceGen data) but are available as an option (like if you hadn't saved in 4 hours and want to try to continue regardless).7.2.1.0- Fixed a logic flaw in bad pointer call recovery.- More changes to game error message logging; these will likely change further.7.2.0.0- Added heuristic detection support for Fixes the Windows 10 Anniversary Update + up-to-date Nvidia / AMD video driver crashes / issues for the following:Fallout New VegasFallout New Vegas No Gore (German)Fallout 3Fallout 3 No Gore (German)OblivionGECK (New Vegas)GECK (Fallout 3)Construction Set (Oblivion)Have you ever had New Vegas crash while trying to play? Of course you have. We all have.I may have a solution for you: NVAC.NVAC (short for New Vegas Anti Crash) is an NVSE plugin that implements structured exception handling and sanity checking to reduce frequency of game crashes.That said, I make no promises. This isn't a cure-all: it only tries to fix crashes related to access violation exceptions at specific offsets / addresses.Since it's an NVSE plugin, nvac.dll goes in your Data/NVSE/Plugins folder.After running New Vegas, you can double check that NVAC loaded by reading the nvac.log file found in your New Vegas folder; if nvac.log doesn't exist, consult nvse.log. NVAC does not fully support the German "no gore" variant of New Vegas; I simply don't have access to it to develop for it.Feel free to submit exceptions marked with a "u" or "v" in nvac.log in the comments. They will usually be the final entry in the log (since an unhandled exception will crash New Vegas). Please also submit "e" or "s" entries in the comments for addresses listed as "preliminary" (in the readme) as that means I haven't personally verified them; New Vegas shouldn't crash when these are logged, so it'd require checking the log file arbitrarily after a play session. The log file is cleared each time New Vegas is started.As a bonus, NVAC implements helper function inlining (it takes internal New Vegas functions that can fit within a 5-byte space and replaces the function call with the 5-byte-or-less instruction) which is a minor performance improvement.NVAC can be removed at any time. NVAC isn't a normal New Vegas mod (esp / esm file); it's an NVSE plugin that modifies the game's executable code at runtime, but doesn't make any permanent changes. Nothing it does gets written out to a save the way changes made by esp / esm mods do.DecipheringVortex won't install NVAC : r/fnv - Reddit
About this mod Fixes a crash caused by alt-tabbing while in a menu, doesn't seem to be fixed by any other mods yet, so here you go! Requirements Permissions and credits NOTE: Requires OBSE! Should be compatible with pretty much any other OBSE plugin (since I haven't seen any other plugin that also includes this fix), but if you have any problems please let me know!NOTE2: For the stablest experience I recommend using this with ENBBoost, Oblivion Stutter Remover, EngineBugFixes and NVAC (NVAC is for New Vegas, but works with Oblivion too)NOTE3: If you use Oblivion Reloaded this fix probably won't have any effect for you, OR changes/fixes a lot of things, which sadly seems to make Alt-Tabbing even more troublesome to the game... Of course they're doing great things for Oblivion, but improving alt-tab support probably isn't that high on their radar :P If I find anything out about the cause I'll be sure to let them know!This fixes a crash when alt-tabbing while on the main/pause menu, some have also reported it helped fix other alt-tab crashes with the game too but I'm not sure if it's fixed all of them - I just know that it does definitely fix the main-menu crash for me - but if your game suddenly feels more stable hopefully it helped in some way!The crash seems to be caused when you alt-tab back into the game, for some reason it tries to look up the coordinates of the exterior cell you're in, obviously when you're on the main menu you're not in an exterior cell - but the game still tries to look up the coordinates regardless, causing a crash since you can't really access data for a NULL cell... (this happens because it calls a class function with a null class. Install NVAC; Remove Mods that change the CC; Fix your Load Order; NVAC. I recommend using NVAC [www.nexusmods.com] in any circumstance. NVAC stands for New Vegas Anti-Crash Installing NVAC is a straightforward process. Follow these steps: Head to the NVAC download page and grab the latest version of the mod. Choose the correct version forNo hair after installing NVAC : r/falloutnewvegas - Reddit
5.8.0.0.- Added log output for two potential hangs.- Inlined two more helper functions.6.1.0.0- Added heuristic detection support for hundreds more instructions.- Improved handling of MOVAPS.- Made changes to various hang fixes.- Added an out of memory check to exceptions related to address 00AA55A6.- Removed targeted support for NVSE 3b2 (there's a newer version now).- Inlined 20 more helper functions.6.0.0.0- Added heuristic detection support for hundreds more instructions. Thank you beta testers.- Preliminary support for another asset loading hang.- Overhauled the instruction parser in the "global" exception handler.- Improved identification of the host process (usually FalloutNV.exe).- Logs will no longer get crazy huge in the case of an infinite loop.5.9.0.0- Added experimental heuristic detection support for ten more instructions.- Inlined two more helper functions.5.8.0.0- Preliminary support for an asset loading hang.- Inlined two more helper functions.- Minor code optimizations.5.7.0.0- Preliminary support for address 005E0F16.- Preliminary support for address 006BF48E.- Preliminary support for address 00E8C00D.- Added heuristic detection support for ten more instructions.- Inlined two more helper functions.5.6.0.0- Added heuristic detection support for eight more instructions.- Added recovery attempt for null instruction exceptions.- Preliminary support for a hang related to semaphore use.- Minor efficiency improvements in various internal NVAC functions.- Added logging output for a specific oleaut32.dll exception.- Improved logging output.5.5.0.0- Preliminary support for address 004B068D.- Added backup SEH hooking mechanism.- Added ordinal export to allow the benchmark utility to directly time NVAC's exception handler.- Inlined five more helper functions.- Minor code optimizations.5.4.1.0- Minor update related to the NVAC benchmark utility.5.4.0.0- Added a utility to the Optional Files area to benchmark the speed of NVAC's exception handler.- Narrowed support for a specific New Vegas hang.- Added heuristic detection support for 18 more instructions.- Moved inliner address list to end of code section.- Improved logging output.5.3.0.0- Preliminary support for address 005A8EE0.- Broadened support for a specific New Vegas hang.- Added heuristic detection support for 23 more instructions.- Converted some heuristic detection comparisons into a jump table.- Inlined one more helper function.- Removed import jump table.5.2.0.0- Added support for GECK address 00936733.- Fixed a specific New Vegas hang; the ntdll.dll one. Thank you commoner31.- Han descrito como "rápido, poderoso y muy eficiente" y los clientes actuales de ESET también verán su lealtad recompensada con una oferta renovable, al momento de escribir. Una versión de prueba gratuita también está disponible a través del sitio web de la marca. VirtualDJPrograma gratis para mezclar músicaBitdefender Anti-Ransomware ToolGuía para el uso de BitDefender Antivirus 2021NVAC - New Vegas Anti CrashMejora Fallout: New Vegas con el mod NVAC Anti Crash.AppCheck Anti-RansomwareAntiransomware gratuito para WindowsÚltimas actualizacionesCCleanerCCleaner, aplicación gratuita para limpiar a fondo el PCOBS StudioSoftware de grabación de vídeo y transmisión en directoSpotifyUn reproductor de música gratuito y potenteNitro ProConvertir archivos PDF en otros formatos popularesCanvaAplicación de diseño polivalenteCapCutUna aplicación gratuita para Windows, de BYTEDANCE PTE. LTD..TeamViewer PortableUso de TeamViewer Portable para gestionar el acceso remotoTeraBoxAlmacenamiento gratuito en la nube para Windows7-Zip 64-bitCompresor de archivos gratuitoJJSploitExplotación gratuita para RobloxADB AppControlGestión mejorada de dispositivos Android con ADB AppControlInternet Explorer 8navegador legado gratuitoGame crashes even with NVAC installed - Steam Community
Anytime the game "Crashes to the Desktop" (CTD) it's typically going to generate an error message in the Windows Eventlog because the game engine was not able to predictably handle the error. Please see the "Windows Error Messages" section of the wiki "How to read most Bethesda game error logs" article.Logs generated by the game itself (not Windows) are found in the game folder, where the "FalloutNV.EXE" file is located. They generally have the ".log" file extension, or a filename with "_log" in the name and a ".txt" extension.In at least one instance a CTD appears to be caused by VWD/LOD files that had not been regenerated (when caught by NVAC as "DISABLED _LOD_ERR").If you add (or remove) any VWD/LOD textures (such as NMC, Vurt's WFO, or Ojo Bueno), please see the 'Checklist Item #15 & 16' entries in the wiki "Fallout NV Mod Conflict Troubleshooting" guide regarding the need to run both TES4LL and FNVLODGen; or xLODGen - Terrain LOD beta for FNV, FO3, FO4, FO4VR, TES5, SSE, TES5VR, ENDERAL. Also recommend you read the 'LOD/VWD Texture Packs' section of the wiki "FNV General Mod Use Advice" article first.-Dubious-How I install NVAC for Fallout New Vegas?
ENBSeries is a mod for Fallout: New Vegas created by Boris Vorontsov. It modifies numerous graphical options and effects, colors and shaders, making everything look far more realistic and attractive.How to install: The detailed install instructions are in the readme file.Last update: Monday, March 31, 2014Genre: RPGFile size: 1.9 MBMods and Add-Ons Fallout: New VegasThe Enclave Hunter v.1.0 - modFile Type: mod, File Size: 54.1 MB, Downloads: 2.2K, Last 7 days: 24, Last Update: October 17, 2016Fallout: New Vegas - The Enclave Hunter v.1.0 - mod - 54.1 MBCheat Table (CT for Cheat Engine) v.2 v.05052017 - modFile Type: mod, File Size: 5.2 KB, Downloads: 2.9K, Last 7 days: 15, Last Update: May 27, 2023Fallout: New Vegas - Cheat Table (CT for Cheat Engine) v.2 v.05052017 - mod - 5.2 KBNVTF - New Vegas Tick Fix vv.10.4b - modFile Type: mod, File Size: 240.9 KB, Downloads: 892, Last 7 days: 8, Last Update: March 6, 2025Fallout: New Vegas - NVTF - New Vegas Tick Fix vv.10.4b - mod - 240.9 KBNVAC - New Vegas Anti Crash v.7.5.1.0 - modFile Type: mod, File Size: 108.1 KB, Downloads: 14.3K, Last 7 days: 6, Last Update: December 18, 2016Fallout: New Vegas - NVAC - New Vegas Anti Crash v.7.5.1.0 - mod - 108.1 KBWeapon Mods Expanded - WMX v.1.1.4 - modFile Type: mod, File Size: 173.2 MB, Downloads: 5.6K, Last 7 days: 6, Last Update: February 21, 2016Fallout: New Vegas - Weapon Mods Expanded - WMX v.1.1.4 - mod - 173.2 MBGod-Like Save - modFile Type: mod, File Size: 7.6 MB, Downloads: 2.1K, Last 7 days: 5, Last Update: November 26, 2021Fallout: New Vegas - God-Like Save - mod - 7.6 MBWar Trash - Quest Mod End Game Save FilesFile Type: mod, File Size: 18.6 MB, Downloads: 83, Last 7 days: 4, Last. Install NVAC; Remove Mods that change the CC; Fix your Load Order; NVAC. I recommend using NVAC [www.nexusmods.com] in any circumstance. NVAC stands for New Vegas Anti-Crash Installing NVAC is a straightforward process. Follow these steps: Head to the NVAC download page and grab the latest version of the mod. Choose the correct version forHow to Install New Vegas Anti Crash: NVAC 2025
21. JohnnyGuitar NVSE 22. kNVSE Animation Plugin 23. NVAC - New Vegas Anti Crash 24. NVTF - New Vegas Tick Fix 25. UIO - User Interface Organizer 26. Height Randomizer NVSE 28. (TTW) Benny Humbles You 29. (TTW) D.E.R.P. - Dialogue Expansion for Role-Players 30. A Roleplayers History 31. A Roleplayers History - More History 32. A Roleplayer's History - Patchy's Picks 33. B42 Wristwatch 34. Common Caravan Deck 35. Distributed Necklaces and Chains (JIP LN NVSE) (DLC and TTW) 36. FOV Slider 37. GRA Unique Weapons Relocated 38. GunRunners Arsenal Integration Mod 39. Patchy's Picks 40. Perk Every Level 41. Radios of Two Wastelands 42. sawyerbatty 43. SCWE 44. Sortomatic - Modders Resource 45. Sortomatic Ingredient Loader 46. Tale of Two Wastelands Quick Start 47. The Mod Configuration Menu 48. The Mod Configuration Menu - Bugfix 2 Patch 49. Star the Wandering Courier (FNC-TTW Patch) 50. TTW DLC Sortomatic Homes 51. TTW General Oliver Hat Fix 52. TTW 3.2 and Project Nevada Super Mutant Weapon Fix 53. Tutorial Killer 54. Universal Item Sorter 55. Upside-down Caravan Card Fix 57. New California 58. GNR Enhanced 59. GNR Enhanced for Tales of Two Wastelands 60. Music Pack for Radio NV 61. CONELRAD 640-1240 - Civil Defense Radio 62. Existence 2-0 -Robot Radio- 63. A World Of Pain 64. A World Of Pain - Dead Money 65. A World Of Pain - Monster Patch 66. Below The Depths - TTW Port 67. Dead Money - Surprise Vending Items Restoration 68. The Someguy Series 69. New Vegas Bounties I 70. New Vegas Collector's Cards 71. New Vegas Collector's Cards - Custom Card Back 72. TTW A Trail of Crumbs 73. TTW A World of Pain for Fallout 3 74. TTW A World of Pain for Fallout 3 - JIP CCC Avatars 75. TTWComments
From OutputDebugString calls.";" entries are output from the game's own error checking.Note to mod developers:I'd highly recommend disabling NVAC (via your mod manager or by removing nvac.dll from your Data/NVSE/Plugins folder) while developing mods to make sure NVAC doesn't suppress any crashes that your mod causes and that could be solved on your end.Changelog:7.5.1.0- Fixed compatibility for automated install alongside TTW when using Mod Organizer. Thank you DarianStephens.- No change to nvac.dll (compared to 7.5.0.0).7.5.0.0- Win10AU fix.- Added support for installation via mod manager for Fallout 3, Oblivion and Skyrim.- Added Windows version to log output.- Added support for address 00B57AA9.7.4.0.0- Internal code cleanup and minor refactoring.- Added naive thread safety for log output to avoid rare mangled log output.- Added heuristic detection support for TEST instructions.- Added heuristic detection support for more x87 FPU instructions.- Added heuristic detection support for MOVSW & LODSW instructions.- Added support for a Havok physics crash related to address 00C670CE.- Added support for an NVSR variant of InterlockedCompareExchange.- Improved logging in case of a specific exception in ntdll.dll.- In-game console command to toggle log output to console (type "nvac" in the console).- Memory purge via PCB added to exception recovery attempt for address 00AA55A6.- Added exception handling during plugin load.- Changed some "!" log entries into "_" to reflect their informative as opposed to exclamatory nature.- Inlined more helper functions.- Refined more helper functions.- Added capability to force loading of a specific shader package; if Data\Shaders\shaderpackage%03i.sdp exists, it will override others.- Added CrashSave generation; under certain conditions, a save will occur when NVAC can't prevent a crash.- CrashSaves have a "CRASH" label in the Load game menu (without NVAC they will have a "SYS" label).- CrashSaves should only be used as a last resort (in some circumstances they can contain bad data, like invalid player FaceGen data) but are available as an option (like if you hadn't saved in 4 hours and want to try to continue regardless).7.2.1.0- Fixed a logic flaw in bad pointer call recovery.- More changes to game error message logging; these will likely change further.7.2.0.0- Added heuristic detection support for
2025-04-18Fixes the Windows 10 Anniversary Update + up-to-date Nvidia / AMD video driver crashes / issues for the following:Fallout New VegasFallout New Vegas No Gore (German)Fallout 3Fallout 3 No Gore (German)OblivionGECK (New Vegas)GECK (Fallout 3)Construction Set (Oblivion)Have you ever had New Vegas crash while trying to play? Of course you have. We all have.I may have a solution for you: NVAC.NVAC (short for New Vegas Anti Crash) is an NVSE plugin that implements structured exception handling and sanity checking to reduce frequency of game crashes.That said, I make no promises. This isn't a cure-all: it only tries to fix crashes related to access violation exceptions at specific offsets / addresses.Since it's an NVSE plugin, nvac.dll goes in your Data/NVSE/Plugins folder.After running New Vegas, you can double check that NVAC loaded by reading the nvac.log file found in your New Vegas folder; if nvac.log doesn't exist, consult nvse.log. NVAC does not fully support the German "no gore" variant of New Vegas; I simply don't have access to it to develop for it.Feel free to submit exceptions marked with a "u" or "v" in nvac.log in the comments. They will usually be the final entry in the log (since an unhandled exception will crash New Vegas). Please also submit "e" or "s" entries in the comments for addresses listed as "preliminary" (in the readme) as that means I haven't personally verified them; New Vegas shouldn't crash when these are logged, so it'd require checking the log file arbitrarily after a play session. The log file is cleared each time New Vegas is started.As a bonus, NVAC implements helper function inlining (it takes internal New Vegas functions that can fit within a 5-byte space and replaces the function call with the 5-byte-or-less instruction) which is a minor performance improvement.NVAC can be removed at any time. NVAC isn't a normal New Vegas mod (esp / esm file); it's an NVSE plugin that modifies the game's executable code at runtime, but doesn't make any permanent changes. Nothing it does gets written out to a save the way changes made by esp / esm mods do.Deciphering
2025-04-18About this mod Fixes a crash caused by alt-tabbing while in a menu, doesn't seem to be fixed by any other mods yet, so here you go! Requirements Permissions and credits NOTE: Requires OBSE! Should be compatible with pretty much any other OBSE plugin (since I haven't seen any other plugin that also includes this fix), but if you have any problems please let me know!NOTE2: For the stablest experience I recommend using this with ENBBoost, Oblivion Stutter Remover, EngineBugFixes and NVAC (NVAC is for New Vegas, but works with Oblivion too)NOTE3: If you use Oblivion Reloaded this fix probably won't have any effect for you, OR changes/fixes a lot of things, which sadly seems to make Alt-Tabbing even more troublesome to the game... Of course they're doing great things for Oblivion, but improving alt-tab support probably isn't that high on their radar :P If I find anything out about the cause I'll be sure to let them know!This fixes a crash when alt-tabbing while on the main/pause menu, some have also reported it helped fix other alt-tab crashes with the game too but I'm not sure if it's fixed all of them - I just know that it does definitely fix the main-menu crash for me - but if your game suddenly feels more stable hopefully it helped in some way!The crash seems to be caused when you alt-tab back into the game, for some reason it tries to look up the coordinates of the exterior cell you're in, obviously when you're on the main menu you're not in an exterior cell - but the game still tries to look up the coordinates regardless, causing a crash since you can't really access data for a NULL cell... (this happens because it calls a class function with a null class
2025-03-255.8.0.0.- Added log output for two potential hangs.- Inlined two more helper functions.6.1.0.0- Added heuristic detection support for hundreds more instructions.- Improved handling of MOVAPS.- Made changes to various hang fixes.- Added an out of memory check to exceptions related to address 00AA55A6.- Removed targeted support for NVSE 3b2 (there's a newer version now).- Inlined 20 more helper functions.6.0.0.0- Added heuristic detection support for hundreds more instructions. Thank you beta testers.- Preliminary support for another asset loading hang.- Overhauled the instruction parser in the "global" exception handler.- Improved identification of the host process (usually FalloutNV.exe).- Logs will no longer get crazy huge in the case of an infinite loop.5.9.0.0- Added experimental heuristic detection support for ten more instructions.- Inlined two more helper functions.5.8.0.0- Preliminary support for an asset loading hang.- Inlined two more helper functions.- Minor code optimizations.5.7.0.0- Preliminary support for address 005E0F16.- Preliminary support for address 006BF48E.- Preliminary support for address 00E8C00D.- Added heuristic detection support for ten more instructions.- Inlined two more helper functions.5.6.0.0- Added heuristic detection support for eight more instructions.- Added recovery attempt for null instruction exceptions.- Preliminary support for a hang related to semaphore use.- Minor efficiency improvements in various internal NVAC functions.- Added logging output for a specific oleaut32.dll exception.- Improved logging output.5.5.0.0- Preliminary support for address 004B068D.- Added backup SEH hooking mechanism.- Added ordinal export to allow the benchmark utility to directly time NVAC's exception handler.- Inlined five more helper functions.- Minor code optimizations.5.4.1.0- Minor update related to the NVAC benchmark utility.5.4.0.0- Added a utility to the Optional Files area to benchmark the speed of NVAC's exception handler.- Narrowed support for a specific New Vegas hang.- Added heuristic detection support for 18 more instructions.- Moved inliner address list to end of code section.- Improved logging output.5.3.0.0- Preliminary support for address 005A8EE0.- Broadened support for a specific New Vegas hang.- Added heuristic detection support for 23 more instructions.- Converted some heuristic detection comparisons into a jump table.- Inlined one more helper function.- Removed import jump table.5.2.0.0- Added support for GECK address 00936733.- Fixed a specific New Vegas hang; the ntdll.dll one. Thank you commoner31.-
2025-04-18