'''If you are using MultiCharts 8.0 Release or any previous version, install the following version of CQG API''': https://dl.dropbox.com/u/95112551/Multicharts_COMAPI_en-US_production_V4.04.542_Install.msi
<div style="background-color: #E3FBE5;">'''Note''': After '''CQG API''' installation, for the first time '''MultiCharts''' should be '''run as Administrator''':
# Close '''MultiCharts''' and make sure, that all [[MultiCharts Processes|MultiCharts Processes]] are ended in Task Manager -> Processes tab.
# Right click on '''Multicharts icon''', then click '''Run as Administrator'''.</div>
At the moment it is not possible to use multiple CQG/AMP accounts in MultiCharts. Only one and the same account should be used for getting data and trading. If different logins and passwords are entered in data source configuration and CQG broker profile, connection to data source will work, the broker profile will not.