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How do I install and enable an Expert Advisor (EA)?

An Expert Advisor (EA) is an automated trading program that operates according to predefined rules. VT Markets supports EAs on MetaTrader 4 (MT4) and MetaTrader 5 (MT5) desktop platforms. To use an EA, install its file, enable automated trading, and attach it to a chart. EAs cannot run directly on MetaTrader mobile apps or web terminals.

What do I need before installing an EA

Before installing an EA, make sure you have the following:
  • MT4 or MT5 Desktop: The MetaTrader desktop platform installed on your computer.
  • Compiled EA File:
    • .ex4 for MT4
    • .ex5 for MT5: If you only have a source code file (.mq4 or .mq5), it must first be compiled using MetaEditor.
  • An active connection to the trading server.
  • The EA developer’s installation instructions and recommended settings.

How do I install the EA file

  1. Open MT4 or MT5.
  2. Select File → Open Data Folder.
  3. Open the appropriate folder:
    1. MT4: MQL4 → Experts.
    2. MT5: MQL5 → Experts.
  4. Copy the compatible compiled EA file into the Experts folder.
  5. Return to the platform and open Navigator.
  6. Right-click Expert Advisors and select Refresh.
If the EA does not appear, restart the platform. Follow the developer’s instructions for any additional files or dependencies.
 

How do I enable automated trading

  1. Select Tools → Options, or press Ctrl + O.
  2. Open the Expert Advisors tab.
  3. Enable the automated trading permission.
  4. Click OK.
  5. Enable the main toolbar button:
    1. MT4: AutoTrading.
    2. MT5: Algo Trading.
If the EA requires external web access, enable WebRequest for the specific URLs provided by its developer.
 

How to Attach the EA to a Chart

Once automated trading is enabled:
  1. Open the Navigator panel.
  2. Locate the EA under Expert Advisors.
  3. Drag and drop the EA onto the trading chart you want to use.
  4. In the pop-up window, open the Common tab.
  5. Make sure Allow live trading is enabled.
  6. Review and adjust the EA settings under the Inputs tab according to the EA's instructions.
  7. Click OK.

How do I check whether the EA is running

  • Confirm that the EA’s name or status indicator appears on the chart.
  • Ensure AutoTrading or Algo Trading is enabled.
  • Confirm that the platform is connected to the trading server.
  • Check the Experts and Journal tabs for errors or rejected requests.
An EA may be running without opening a trade if its programmed entry conditions have not been met.
 

What should I know before using an EA on a live account

  • Understand the EA’s strategy, settings, and risks.
  • Test it on a demo account before live use.
  • Monitor your account and the EA’s activity regularly.
  • Ensure its order requests comply with applicable trading conditions and Order Frequency Limits.
VT Markets provides access to the trading platform but does not guarantee the performance, reliability, or profitability of third-party EAs. You remain responsible for orders executed through your account.
 

Risk Warning

Trading Contracts for Difference ("CFDs") and other leveraged financial derivatives involve a high degree of risk and may not be suitable for all investors. Leverage can magnify both gains and losses, and you may lose all of your invested capital. You should ensure that you fully understand the risks involved before trading.
 
The information provided on this website is for general information purposes only and does not constitute investment advice, a recommendation or an offer or solicitation to buy or sell any financial instrument.

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