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Access To The Port 'com4' Is Denied

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Dick -- Richard Grier, MVP Hard & Software Author of Visual Basic Programmer's Guide to Serial Communications, Fourth Edition, ISBN 1-890422-28-2 (391 pages, includes CD-ROM). I'd have expected closing the Debug or Terminal Windows to have done that. Jerry 0 Message Author Comment by:Ziggy622 ID: 187495002007-03-19 Thank you for both suggested fixes. It can be quite annoying though Reply With Quote 27-04-2008,08:12 #4 xnederlandx View Profile View Forum Posts Private Message View Blog Entries Member Join Date Sep 2007 Posts 88 A serial http://supportcanonprinter.com/is-denied/access-to-the-port-is-denied-c.html

In any event, I'm up and running again. I am doing a C# project which handles data (Weight, Length, Width, Height) from a scale through COM1. (C# 2.0, SerialPort object, WinXP).The scale is connected with COM1, and now I Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Access to the port 'COM1' is denied Archived Forums # > Check you've got the latest Programming Editor version ( 5.2.0 ), beyond that it would seem to be a matter only Technical can give more info on.

Access To The Port 'com4' Is Denied

Something is grabbing the port (maybe the repeater server?). If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.Would you like to participate? This occurs when the app tries to open the port. Choose "Communications Port (COM1)" or (COM 2 etc...

It set itself up on COM3.Guess what? kindly give a sample of code sir? At least that's what I recall from working with this several years ago (with vb6) If this is correct then your code will need to look something like this Code: ' Windows 10 Com Port Access Denied Join them; it only takes a minute: Sign up Access to the port “COM1” is denied up vote 3 down vote favorite I have a RFID devices connected to my laptop

I’m out of ideas, anybody else have this issue? System.unauthorizedaccessexception Access To The Port Is Denied They said it does not. Attend this month’s webinar to learn more. Help....

This occurs when the app tries to open the port. Com Port Access Denied Arduino Reply With Quote Jan 16th, 2013,09:05 AM #2 dbasnett View Profile View Forum Posts Visit Homepage Powered By Medtronic Join Date Dec 2007 Location Pointless Forest 38.517,-92.023 Posts 8,773 Re: Cash Open printer settings?" [YES] [NO] And yes, it IS connected, turned on and ready to go just as before when it worked. share|improve this answer answered May 15 '14 at 8:00 Ove 4,07512250 If there is other program accessing COM1 port, can i change the port number that my RFID device

  1. What are the benefits of an oral exam?
  2. If you are, this is also a problem.
  3. After several attempts, I was able to connect to the Boxzy unit thru the Boxzy Interface software and manually move the head around, park it, etc and everything looked great.
  4. To start viewing messages, select the forum that you want to visit from the selection below.
  5. ZL3GSL, Apr 7, 2009 #8 KC8VWM Ham Member QRZ Page AB9LZ said: ↑ chmod 660 /dev/ttyS0 wait, nevermind, you are using winders so you are screwed : ( oh and this
  6. Maybe Repeater Server.
  7. if anything fastdetect should be added, not removed.

System.unauthorizedaccessexception Access To The Port Is Denied

asked 2 years ago viewed 9986 times active 2 years ago Related 801How can you find out which process is listening on a port on Windows?527What is the difference between a Fax software or a modem could have it open, or you could have left it open yourself. Access To The Port 'com4' Is Denied share|improve this answer answered Jul 20 '09 at 13:51 R Ubben 2,086127 add a comment| up vote 1 down vote There's probably something else using COM1 (auto sync programs tend to Unable To Open Serial Port Com1 Access Is Denied You may have to register before you can post: click the register link above to proceed.

The cause is a combination of Windows and the device. check my blog Jerry 0 Comment Question by:Ziggy622 Facebook Twitter LinkedIn https://www.experts-exchange.com/questions/22458237/COM1-serial-port-Access-is-denied.htmlcopy LVL 7 Best Solution bymcsa_2003 Hi, do you have administrator rights? AB8ZL, Apr 6, 2009 #2 KC8VWM Ham Member QRZ Page In the device manager you can change the settings of the comport. Keep in touch with Experts ExchangeTech news and trends delivered to your inbox every month Membership How it Works Gigs Live Careers Plans and Pricing For Business Become an Expert Resource Access To The Port Is Denied Iis

My Best, Charles - KC8VWM Last edited: Apr 6, 2009 KC8VWM, Apr 6, 2009 #3 W4DHX Premium Subscriber QRZ Page Thanks for the quick replies, I'm using Windows XP as Once I figure out how to fix it I'll post the results as I'm sure someone else will get bitten by this... My First Computer -- Documentation Link (RT?M) -- Using the Debugger -- Prime Number Sieve Counting Bits -- Subnet Calculator -- UI Guidelines -- SerialPort Answer "Those who use Application.DoEvents have this content July 2004, Revised March 2006.

Join our community for more solutions or to ask questions. Unable To Open Serial Port Com3 Access Is Denied Cancel Ken Gross @spasticken Rep: 921 Posted: 02/28/2016 Options Permalink History John, in AVAST there has to be a process exception that you can set. To add a trusted process, click on the “browse” button to locate it on your computer, then click “Add”.

If the installed software says to the O/S, " Hey Windows!...

Serail port is closed in the middle of scale send data back. But you got me thinking about that again --- so I shut off the AVAST anti-virus process and darned if the BOXZY_interface program worked first try! The machine the app runs onhas 2 comm ports and a PS/2 mouse. How To Use Portmon You can also check to see what ports are avalible on your machine through the Device Manager (press Windows-Break, "Hardware" tab, "Device Manager" button, "Ports (COM & LPT)" node).

John 02/28/2016 by John Gibbons Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz? Use the link to the left - "Rate this Post". The device you are attaching is "strange" to the PC ,so it doesn't know how to "auto handle it." That's why you probobly need to manually configure it instead. have a peek at these guys Cancel John Gibbons @hwdude37 Rep: 1 Posted: 02/24/2016 Options Permalink History Sorry, but you need to be a lot more specific.

I knwo this is some type of security access problem but I have no clue where to fix it. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed it's a big point...   Friday, September 07, 2007 5:18 AM 0 Sign in to vote I have same problem like you. Covered by US Patent.

Why do CDs and DVDs fill up from the centre outwards? A null modem cable will cause what you are experiencing. If I am not mistaken, only one thread can access a com port at a time. John 02/27/2016 by John Gibbons Add a comment 0/1024 Cancel Post comment Are you sure you want to delete this zzzzzz?

Especially maybe Technical?