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Updated MT4 Terminal is planned on February 3

  • #1
  • First Post: Jan 25, 2014 4:06am Jan 25, 2014 4:06am
Updated MT4 Terminal is planned on February 3

Currently, some traders report unexpected update of their MT4 to a build 574, which is commonly known as Beta.
Official banner advertises a new market option in the MT4 starting on February 3rd.

http://forex.ovo.cz/en/cutenews/uplo..._en[1].png

This means the new featured MT4 is supposed to deploy to the traders' machines after this date.
Apparently, such event is expected with worries.
What to expect?

How to be prepared

  1. Do not panic. But do not underestimate consequences.
  2. Create a backup of your experts folder now.
  3. Most of your *.mq4 files become defective after the update, while most of the *.ex4 will go on flawlessly. Therefore:
  4. Supposing you have the experts backed up, remove all *.mq4 files from the current experts.
  5. Do not be surprised that content of the experts folder moves to the MQL4folder. The latter replaces the former for script storage in the new build.


After all your mq4 code gets removed, the updated MT4 terminal will be much safer, it will not destroy ex4 indicators and experts that would not compile in the new environment. They are expected to work.

Consequences for indicators
The current indicators for offline charts are built under 509 and are distributed in ex4 files, so they will not be affected directly. Nevertheless the brand new MT4 terminal may be unstable in the beginning, so issues may arise.
In case there is unexpected event, please try to detach/attach the indicator, restart the terminal. If it does not help, report it to me.
I do not intend to update the recent 509 versions of my indicators any longer unless there is a fatal bug. The new MQL language is quite different and the new updates need redesign.

UAC issues
If the installation of the MT4 terminal resides in the default location (Program files), then UAC applies. The indicators are not prepared to work in the UAC mode, so if you want to use them, the UAC for MT4 installation must be avoided. There are three options to pick from:

  1. Completely switch off the UAC (I would recommend this step only with a brand new computer/system)
  2. Install your MT4 terminal out of the Program files (UAC applies to this location only as far as I know).
  3. Start your terminal in portable mode (as described in previous article)

  • #2
  • Jan 26, 2014 12:34am Jan 26, 2014 12:34am
I hope none of my indicators get effected.

Btw why are they making this changes? as far as I know present mt4 is working perfectly fine.
  • #3
  • Jan 26, 2014 4:03am Jan 26, 2014 4:03am
What is latest MT Build?
  • #4
  • Jan 26, 2014 11:24am Jan 26, 2014 11:24am
Quoting Somm FX
What is latest MT Build?
The latest one is 577, and to be honest, I am about to panic.
  • #5
  • Jan 27, 2014 11:46am Jan 27, 2014 11:46am
HELP me GUYS

I am with FXOpen Australia and they have upgraded to MT4 Build 577.
I have no coding experience and don't know how to compile files.
After upgrading to 577, I can not use any of my indicators. I was using THV4 and other indicators but none of them work now.
Kindly guide me, what to do now? I want my THV4 back

Happy pipping to all
Traders gain some knowledge, win, their emotions kick in, and they die.
  • #6
  • Jan 28, 2014 7:29am Jan 28, 2014 7:29am
1) In the new build, the file structure for storing the source codes has changed. Previously, all MQL4 programs were stored in Program Files\<terminal_installation_folder>\ root directory. Now, they should be stored in Users\<data_folder>\MQL4\. Thus, if a program has an absolute pathname for some file, you may run into an error message in the compiler. To avoid this, specify a relative pathname in the source code and re-compile it. The data folder can be accessed via File -> Open Data Folder.

2) All old EX4 files will work correctly in the new terminal assuming that they are not changed. In order to maintain compatibility, the runtime environment copy of the previous MQL4 version has been implemented providing operability of all older codes.
  • #7
  • Jan 28, 2014 9:41am Jan 28, 2014 9:41am
Is this version absolutely required for all brokers?
  • #8
  • Jan 29, 2014 4:05am Jan 29, 2014 4:05am
If anyone prefers to set Metatrader 4 terminal to portable mode to revert data folder relocation:

Q: What does “portable mode” mean and how do I set it up?
A: Portable mode prevents Windows from placing the application data to a remote user profile repository.
First, look for the shortcut you use to launch the MT4 terminal (usually within the Start menu):
https://docs.google.com/document/d/1...06MS5VeQ2Fj3LQ

Right-click the shortcut icon, select Properties.
https://docs.google.com/document/d/1...z0h95D_UOOiLdQ

Modify the target from something like this "C:\Program Files\MetaTrader 4\terminal.exe" to ​"C:\Program Files\MetaTrader 4\terminal.exe" /portable

https://docs.google.com/document/d/1...H0G3QEKae54VaA
Confirm the change.
  • #9
  • Feb 3, 2014 10:03am Feb 3, 2014 10:03am
Can you please explain more details what will "portable mode" will do in this coming 574 update?
  • #10
  • Edited 10:57am Feb 3, 2014 10:47am | Edited 10:57am
Quoting mazidah37
Can you please explain more details what will "portable mode" will do in this coming 574 update?
Some MQL scripts rely on folder structure, that did not change for years. Now there are two changes - the experts is renamed to MQL4 and the entire MQ4 folder has moved away to the user profile. The portable mode solves the latter and places the folder back into the Metatrader folder.
  • #11
  • Feb 3, 2014 5:31pm Feb 3, 2014 5:31pm
Quoting Ovo
{quote} Some MQL scripts rely on folder structure, that did not change for years. Now there are two changes - the experts is renamed to MQL4 and the entire MQ4 folder has moved away to the user profile. The portable mode solves the latter and places the folder back into the Metatrader folder.

thanks for the explanation. Did you mean if we run this mode we still able to run the latest 574 version.
  • #12
  • Feb 4, 2014 6:41am Feb 4, 2014 6:41am
Quoting mazidah37
{quote} thanks for the explanation. Did you mean if we run this mode we still able to run the latest 574 version.
Sure, that is the way it has been working so far.
  • #13
  • Feb 5, 2014 3:04am Feb 5, 2014 3:04am
Quoting Ovo
If anyone prefers to set Metatrader 4 terminal to portable mode to revert data folder relocation: Q: What does “portable mode” mean and how do I set it up? A: Portable mode prevents Windows from placing the application data to a remote user profile repository. First, look for the shortcut you use to launch the MT4 terminal (usually within the Start menu): {image} Right-click the shortcut icon, select Properties. {image} Modify the target from something like this "C:\Program Files\MetaTrader 4\terminal.exe" to ​"C:\Program Files\MetaTrader...
I have tried this. I have been to http://forum.mql4.com/60555 and read that. I keep getting the message

"The name specified in the target box is not valid. Make sure the path and the filename are correct."

Anyone have any thoughts?
  • #14
  • Last Post: Jun 4, 2014 2:54pm Jun 4, 2014 2:54pm
Quoting Ovo
{quote} Some MQL scripts rely on folder structure, that did not change for years. Now there are two changes - the experts is renamed to MQL4 and the entire MQ4 folder has moved away to the user profile. The portable mode solves the latter and places the folder back into the Metatrader folder.
Try this "workaround"
It should work if your DLL strings are correct
http://fxnewsalert.com/MT4_600_fix.html
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