I reduced GPU usage intensity a lot in latest versions, but it can cause only 0.1% slower speed. I can make this mode optional if you want.

You lose profit only when you are not mining.

Yes, it always uses "pools.txt" but it does not ignore "-o" option. It firstly adds pool(s) from "-o" option and then adds pool(s) from "pools.txt".

1. I agree about false alarms. I don't state this proxy is a virus. But I see that my antivirus alarms sometimes when I close it. Scanning is ok, however.
2. You are correct about protection - I cannot remove it because some people want to spend their time to crack the miner instead of writing own one. So I do nothing because I cannot do anything here. Say thanks these guys.
3. Ok, I just released v4.2 with "-nofee" option, in this mode miner is a bit slower (-10%) but absolutely free, so I will lose 100%, you will lose only 5%. If you think that I'm bad greedy guy and does not deserve the fee - enable this mode.

v4.x has two builds - for Catalyst 13.12 and for Catalyst 14.6.

This guy promises that his proxy increases hashrate. Well, I'm curious so I checked how it works.
Miner calculates hashrate as TotalNumberOfShares / TotalTimeRunning. If some pool has problems, miner is disconnected and in 20 seconds it will try to connect to same pool. After 3 attempts it will try next pool in fail-over list and so on. During these reconnection attempt mining is stopped and TotalNumberOfHashes is not growing, but TotalTimeRunning is still growing. So if your internet connection is unstable or your pool has some problems like DDOS, maintenance or something else, hashrate will be decreased. As soon as you restart miner hashrate will be back again until same situation.

Now let's try this "proxy". Miner shows same hashrate, but try to disable your internet connection to simulate problems with pool. And you will see though proxy lost its connection to the pool, it does not disconnect miner, so miner still sends shares... to nowhere. Connection to proxy is ok so miner shows same hashrate, calculate hashes, everything looks good, but actually you don't get anything for shares that it finds. Well, let's wait, may be proxy will notice that something wrong? No, it's too simple for such things, I waited for 15 minutes with disabled internet connection but nothing happened, proxy did not disconnect miner so it still sends shares and shows good hashrate
So now I know how he gets "+50% hashrate"... Another problem is that when you enable internet connection again, nothing happens again, miner still sends shares to nowhere because proxy does not reconnect to the pool. But hashrate is ok of course

And link to my warning:
https://bitcointalk.org/index.php?topic=638915.msg7680353#msg7680353

+50% hashrate just by adding proxy? Wow  

I cannot stop this scam, but I can warn:
1. Antivirus Dr.Web found "Trojan.Packed.194" when I tried to close one of these "software" and moved file to quarantine.
2. Miner detects such proxies easily. It shows same hashrate but pool will receive less shares after some time. You can check it if you have enough time.

In future I will refer to this message sometimes because these guys (or it is the same guy) spam thread and this message can be missed easily.

Tested on Windows XP SP2 x86 successfully. What error do you have exactly?

v4.1 is available:

- Added "-r" option, now miner can restart itself automatically if GPU failed, also now miner can be restarted periodically, no additional scripts required.
- Reduced intensity dramatically, now Windows almost does not freeze when miner is working. It can also improve stability.
- Fixed some minor bugs.

Your logic is brilliant:
Government gets too much money - so don't pay taxes!
Someone earns too much than I want - let's rob him!

You can agree with dev fee and use miner, or if you don't agree - don't use it.
If you want something good, but don't want to pay for it - you can try to steal/crack it and you will become rich But I have right to protect my property from such things, so in many cases you will fail even if you think that you cracked it, I already explained how miner will work in such situation.
If you just don't want to pay me for my job I can release miner without dev fee but a bit slower. But I doubt that it will be popular: everyone wants only the best. And for free, of course...

I could make dev fee twice less, but you barely notice even 5%, so 2.5% will not help you. So I'm sure the problem is not that you lose 5% for dev fee, the problem is that I earn "too much". If you think that I've already earned enough - create such miner as mine to estimate time, expertise and efforts that are necessary. Otherwise your words are senseless. If you are not so good to do it - may be it's a good idea to think that I earned these 6K XMR fairly?

I think 10-30%, depends on card.

I'm not living in this forum, so sorry for the delay
I think there will not be 32 bit version of this miner, it requires too much GPU memory and it's even unstable sometimes on 64bit systems, I'm sure OpenCL on 32bit platform would work even worse.

1. OP is not updated because I cannot update it, this thread was created before I came here.
2. This thread is for XPM miner, it always had 10% dev fee. To mine on minergate you need XMR miner, it's different thread 

Check original post of this thread:
https://mega.co.nz/#F!vhB2BCIA!ZuBRI_YyP-SztQnINK6xkA

May be later, I'm busy with new update. Right now you can setup private pool for that.

What's wrong? Do you have same speed for both hynix and elpida?

CN PoW requires a lot of memory access, memory latency is very important in this algorithm. Memory size is important too.
290x hynix has 44 compute units, 4GB memory and gets about 740 h/s.
280x hynix has 32 compute units, 3GB memory and gets about 460 h/s.
Miner optimized for both these cards.

h/s is important. Your question is related to pool, not to miner, pool mining for CN is a bit tricky about payments if you mine for a short time period. Leave both rigs to mine for a few days and you will see that profit is related to h/s. Or learn/ask details about pool payments

Probably you have Hynix memory on 270x and Elpida memory on 280x. Elpida memory is slower, memory type is important.

It means that miner is unstable on your system. The best solution is to use "-wd 1" option to close miner in such cases and use script to restart it.