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Updated: 05-18-15 11:38 AM
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Shadows of Argus (7.3.0)
Tomb of Sargeras (7.2.0)
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Legion (7.0.3)
Updated:05-18-15 11:38 AM
Created:05-23-09 01:32 PM
Downloads:4,883,750
Favorites:1,578
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Categories:Leatrix Projects, WoW Tools & Utilities
7.3.0

Leatrix Latency Fix  Popular! (More than 5000 hits)

Version: 3.03
by: Leatrix [More]

Introduction

Leatrix Latency Fix reduces your online gaming latency by increasing the frequency of TCP acknowledgements sent to the game server. For the technically minded, this is a program which will modify TCPAckFrequency.

System Requirements
  • Windows (64-bit or 32-bit, Vista SP1+, XP SP3).
Macintosh users should read the guide here.

Installation Instructions

Download, extract and run Leatrix_Latency_Fix_3.x.exe. Click the Install button then restart your computer (or disable/enable your network card). To uninstall, click the remove button and restart your computer. You can watch a short installation video here. For more information, see the FAQ.

Links

Official Leatrix Sites
Fan videos (English)Fan videos (Non-English)Fan pagesMore

Genuine Leatrix software is always linked on Leatrix.com.

Leatrix software is protected by copyright.

3.03
  • Fixed a situational issue with standalone, public computers.
3.02
  • Fixed a small issue when using Windows XP with standard user rights.
3.01
  • The program status will now ignore network interfaces that don't have a gateway.
3.00
  • Leatrix Latency Fix 3.x is written in Python and supports User Account Control and Administrator rights detection.
2.0.2.0
  • Updated exception handling.
2.0.1.0
  • Simplified the code structure and removed the restart function.
2.00
  • Leatrix Latency Fix 2.x is written in Visual Basic (Microsoft .Net Framework 4 required).
1.23
  • Updated the restart process.
1.22
  • Unknown interfaces will no longer be listed in the checker script.
1.21
  • The checker script will now show interface names.
1.18
  • The checker script will now show IP addresses for modified interfaces.
1.15
  • Added batch support (eg. 'cscript c:\install.vbs') (Administrator rights required).
1.12
  • Added a checker script that will report the installation status.
1.11
  • Added User Account Control support.
1.00
  • First release.
Archived Files (4)
File Name
Version
Size
Author
Date
3.02
5MB
Leatrix
05-11-15 12:54 PM
3.01
5MB
Leatrix
05-11-15 11:31 AM
3.00
5MB
Leatrix
10-28-12 05:16 AM
2.0.2.0
383kB
Leatrix
10-22-12 12:51 PM


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Unread 06-03-09, 04:43 AM  
front243
Premium Member
Premium Member

Forum posts: 29
File comments: 11
Uploads: 0
On Vista I managed to install this using an elevated command prompt (right click and "Run as Administrator"). That's somewhat easier than disabling and enabling UAC.

edit (My experience):

Vista x64 SP2
Before: 100-200ms typical
Now: about 30ms
Last edited by front243 : 06-03-09 at 05:01 AM.
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Unread 06-04-09, 07:35 AM  
Aisenfaire
A Murloc Raider

Forum posts: 6
File comments: 306
Uploads: 0
Operating system: Microsoft Windows XP Service Pack 3
Latency before: 500 - 800
Latency now: 400 - 500

Thank you.
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Unread 06-06-09, 11:08 PM  
karmamuscle
A Cobalt Mageweaver
 
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Forum posts: 205
File comments: 173
Uploads: 1
My God thats some excellent work Leatrix! Thank you, thank you, thank you.

Operating system: Microsoft Windows 7 RC
Latency before: 280 - 330
Latency now: 44 - 87

Note on the installation. Did as front234 did and used the Windows Script Host to run the script.

Right-click the Command Prompt under Accessories in All Programs.
-or-
Search programs for cmd.exe and right-click.

Choose Run as Administrator.

Go to the folder with the vbscript.

Type wscript.exe "Optimise TCP for reduced latency and faster gameplay.vbs" and press Enter.

Viola! Dancing bananas
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Unread 06-09-09, 06:01 PM  
XMushroom
A Kobold Labourer

Forum posts: 0
File comments: 28
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So far so good! Ill perhaps post more findings later.

Currently using, Vista32 SP1. I went from 170ms to 80ms.

One fast question without doing a lot of research on my part

all this does is allow more connections? Would be interested to know a little of the registry changes it makes.

Great fix though! Worked great! Ty
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Unread 06-09-09, 09:57 PM  
epitome
Premium Member

Forum posts: 6
File comments: 21
Uploads: 0
Just to say thanks for this. I knew how to do this manually before but forgot since (couple of OS reinstalls, change of motherboards etc...) - Latency was typically around 300ms to 400ms before I used this. Now my latency hovers between 30ms and 65ms !
Fantastic stuff as all I need to do now is run your script to make the change !!!

EDIT: Oh and am currently running/using Windows XP SP3 32bit - playing from Europe on EU servers.
Last edited by epitome : 06-09-09 at 10:00 PM.
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Unread 06-10-09, 12:30 AM  
aceman67
A Theradrim Guardian
 
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Forum posts: 67
File comments: 72
Uploads: 2
OS Windows 7
Before 356 (in Capital Cities)
After 124 (In Capital Cities)

Thank you so much!
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Unread 06-10-09, 02:12 AM  
Mozzi
A Kobold Labourer

Forum posts: 0
File comments: 1
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Simply Amazing

Windows 7 x64
Before: 200 - 300
After: 60 - 80

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Unread 06-10-09, 03:10 AM  
Chobaka
A Kobold Labourer
 
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It works nice.

Before: 100-200ms
Now: 40-60ms
OS: WinXP x86 SP3 latest updates installed.
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Unread 06-10-09, 10:04 AM  
Kunstbanause
A Defias Bandit
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Forum posts: 2
File comments: 52
Uploads: 4
I was kinda skeptical.
But..
Before: ~170
After: ~55
... speaks for it self.

The slight delay after pushing a action button is completely gone.
Happy Priest is happy... and casting instants instant finally!

(Vista 64 btw)
Last edited by Kunstbanause : 06-10-09 at 10:07 AM.
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Unread 06-10-09, 11:44 AM  
Leatrix
leatrix.com
 
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Featured Addon Author

Forum posts: 0
File comments: 206
Uploads: 36
Originally posted by Skylinee
You supposedly need a Vista Hotfix before you can use this
The hotfix is included in Windows Vista SP1, which is why SP1 is required for the latency fix to work.
Last edited by Leatrix : 06-10-09 at 01:29 PM.
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Unread 06-10-09, 11:52 AM  
Skylinee
A Murloc Raider

Forum posts: 5
File comments: 373
Uploads: 0
Allright, enough whining from me. Old ping: ~250ms, new: ~40


Thanks for this, i really missed this fix since i switched from XP to Vista.

Edit: OS: Vista 64 Home Basic 64bit
Last edited by Skylinee : 06-10-09 at 11:52 AM.
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Unread 06-10-09, 03:34 PM  
Khuul
A Murloc Raider

Forum posts: 9
File comments: 2
Uploads: 0
Originally posted by Leatrix
This sounds like a Windows corruption issue.

Click Start > Run, enter regsvr32 VBScript and click Ok.

You should receive a message that it succeeded. If so, try the script again.
Thanks for that, tried it again and worked fine

Before: 150-250
After: 70
OS: winxp sp3
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Unread 06-10-09, 08:46 PM  
Caladell
A Kobold Labourer

Forum posts: 0
File comments: 2
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Thanks for this! Noticed quite the difference on both my computer, and my wife's. Also noticed smaller pings in Team Fortress 2.
Anyway, old ping: typically 200-250, with it going up to 500 some times
New ping: 55-70, and much more consistent speeds
OS: Vista 32 SP1
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Unread 06-11-09, 03:14 AM  
Elariah
Premium Member
 
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Premium Member

Forum posts: 18
File comments: 67
Uploads: 0
Yeah a very good fix. I forgot about this setting in the registry for ages! Reduced my latency from 160-300 to no more than 30-45 now.
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Unread 06-11-09, 08:45 AM  
Psychophan7
A Chromatic Dragonspawn

Forum posts: 153
File comments: 47
Uploads: 0
While running around Dalaran...
Before: 350ms
After: 130ms
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