Probably make a suggestion for them to prompt user decision before "banning" a program or .exe. Those can be highly annoying, because it largely works in the background, misleading you to think that the other softwares are faulty and such.
Though I must say I've seen far worse cases.

This is why I don't have AV installed on my main gaming machine. :) Sometimes AVs can be worst than viruses. McAfee, ahem...

Well, seems that 2 programs were messing up the game:
Norton Antivirus
MalwareBytes Anti-Malware

:(

Both were either stopping the patches from applying, or quarentining files.
Sigh.

when i installed the 1.2>1.3 patch using ie9 the exe.us percieved as a threat in the built in download manager, i just ran it from my downloads folder as admin and it worked fine, also i had to make the launcher exempt in avg 10(free) it was seen as a threat there too

Ummm, that may have been true YEARS ago, and with single core processors, but that has not been an issue in the lastcouple years
Most all AV programs use only about 10-20mb of memory, and less than 1% cpu usage on dual core or higher.

What is REALLY messing things up nowadays are Hueristics. 0 day security has become such a big thing, that mfr's are upping the hueristic levels to 'stupid' levels, hence why everything is being detected as a virus or malware.
Also, net-tracking is bad too.
If a new game, or file comes out that almost no one has, it will also be flagged because it is not 'in the wild' yet.

Also, most AV's have a 'gaming mode', where certain things are set to disabled. while a full screen app/game is detected.

So, AV has come a LONG way in the last 2-3 years. They just need to be 'gaming' configured better.

But, I do agree with shutting it off during gaming, and on during browsing.
:)

You are right about some of that, and some of my post is a rant. You are thinking from a gamer's perspective, with a high powered gaming machine, rather than a $300 machine from Wal-Mart that came with Vista installed and only 512MB of memory.

Still, internet security eats up way too much system resources, and even the supposed "gaming or full screen mode" doesn't help that much. And, most internet security software doesn't stop these new scareware fake security scanners. Over 70% of what I do is removing malware from computers.

Then on top of that there are printers who have 10 processes running, when the only thing needed to print is the driver. And, multiple programs with auto-updaters running at all times. And, don't get me started on toolbars. I've seen computers with about 3 inches of a browser window available below all the toolbars, even on a 22" inch monitor. Add in Google desktop, Blackberry desktop, iTunes software, Weather desktops, and all the Bloatware added in by the computer manufacturers, who freely use your desktop as a billboard, and you have about 25% of the computer performance you should have from your hardware setup.

To add to the post, I rather take the chance of getting my patching corrupted (which usually doesn't happen without a pop-up) than to take the chance of getting spywares and virus creeping into my system.
I agree with you about this. All these utilities, while looking fancy and conveniently, seriously bloats your PC esp. for low ended system.

I have a folder for games. No problems with 1.3. As soon as it was done the launcher came up and it did fine.

Most of the time it really is PICNIC...
(P)roblem (I)n (C)hair (N)ot (I)n (C)omputer

MalwareBytes Anti-Malware is great as a second opinion tool if you use the free version that has real time protection disabled, but nowadays there are many lean, gaming friendly antiviruses (even freeware) available that I would chose over bloatware like Norton.
Top right of the diagram, Avira Free is a best buy (hell, it's free), Kaspersky and Nod 32 (ESET) are very popular among gamers.

You should make a thread dedicated to this. Once we figure out which antiviruses work with the game and which cause problems (I've also heard of something called "Immunet" causing issues), we'll all have a much easier time figuring out problems like this and the "invalid or incomplete" message.

I run AVG Free 2011, and bought TW2 retail. I patched it successfully from 1.2 to 1.3 with no problems. (Which surprised me, considering I forgot to uninstall my mods before doing so!)

Which version you purchased shouldn't make a difference, but I can confirm that AVG Free doesn't cause any problems :)

So far the ones I've seen that cause problems are Norton Antivirus, MalwareBytes Anti-Malware, and something called Immunet.