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"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam

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"I'm satisfied with IQFeed. It's the most reliable and fastest quote feed I have ever used. Although I'm a resident in China, it's still very fast!" - Comment from Xiaofei

"I ran your IQFeed DDE vs. my broker vs. a level II window for some slow-moving options. I would see the level II quote change, then your feed update instantaneously. My broker's DDE, however, would take as much as 30 seconds to update. I am not chasing milliseconds, but half a minute is unacceptable." - Comment from Rob

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»Forums Index »Archive (2017 and earlier) »DTN.IQ Client Software Support »IQfeed installs but won't run (Windows 11)

Author	Topic: IQfeed installs but won't run (Windows 11) (5 messages, Page 1 of 1)
jasonl -Interested User- Posts: 2 Joined: Jan 11, 2023	Posted: Jan 11, 2023 06:48 PM Msg. 1 of 5 Hello - I installed the IQfeed client on a 64-bit Windows 11 pro system, version 21H2. All Windows updates are current. IQfeed installs quickly and without any errors. I cannot see any obvious issues in the install log. But upon installation, I cannot start any of the IQ apps. The freestanding apps themselves won't pull up - no GUI. But I do see each app in the process table after double-clicking on each. It shows up in taskmgr, but no GUI. IQconnect.exe only shows up when you run diagnostics.exe and hit the 'test' button. Diagnostics stop at "register application' stage because the connection does not complete. IQconnect hangs at "received authorizations" stage. Logs show the server is reachable and it appears the creds are accepted. Of course, calling IQfeed through a trading platform has the same result - does not connect. There is no antivirus or other software running that could be stepping on anything. There are no issues with any other software, OS, drivers, broker or 3rd party data feed or trading platform on this machine. My DTN account is also fine because I can connect from another machine. Rebooted the system multiple times, uninstalled and reinstalled IQfeed multiple times, including deleting registry keys in between to remove all traces. Any help would be appreciated.
stargrazer -DTN Guru- Posts: 302 Joined: Jun 13, 2005 Right Here & Now	Posted: Jan 12, 2023 12:39 AM Msg. 2 of 5 If you start it from the command line, do you see any useful diagnostics?
jasonl -Interested User- Posts: 2 Joined: Jan 11, 2023	Posted: Jan 12, 2023 02:57 AM Msg. 3 of 5 Good question. I do not. Attempting to start any IQ app from the command line immediately returns the command prompt without any errors or warnings, but interestingly, the apps do not start, or at least I can't find any evidence that they do. I tried with several. They're not in the process table. This is distinctly different from simply double-clicking the apps inside Program Files\DTN\IQFeed in which case you get the Windows wait cursor (the blue circle) for a couple of seconds and then the app appears in the process table but there is no GUI and no way to interact with it.
DTN_Gary_Stephen -DTN Guru- Posts: 394 Joined: Jul 3, 2019	Posted: Jan 12, 2023 11:01 AM Msg. 4 of 5 JasonL, can you send an email to IQFeed support with your account info so we can investigate further? Thank you. Sincerely, Gary Stephen DTN IQFeed Implementation Support Specialist
DTN_mark_e -Interested User- Posts: 49 Joined: Sep 25, 2014	Posted: Jan 13, 2023 09:38 AM Msg. 5 of 5 Jason, to assist you, please email us (support@iqfeed.net) with your IQFeed Setup log and the IQConnect Log. Please include your IQFeed login ID in your email. The Setup can be found at %temp%\IQFeedSetupLog.txt The IQConnect Log is located in Documents\DTN\IQFeed Thank you. Trading Markets Customer Service 800-779-7299 (DTNIQ & IQFEED) www.dtn.com/trading \| http://www.iqfeed.net