MagicJack on Windows 7

by JGalt on March 6, 2009

in Tips 'n' Tricks

For those of you who use MagicJack, there is a way to get it running on Windows 7.  Even in XP it could be a real pain, and unreliable. I’ve been hung up on more than a few times because the voice quality was so bad. The advertised “plug it into a USB port and that’s it” procedure falls flat in Windows 7.

The cost and Long Distance savings are outstanding. But if I had serious health problems and required dependable 911 service, MagicJack just might not be there when needed.

From what I’ve read and tested, there are a couple of options.

The first is to start it from the command line eliminating the initial splash screen. The command line for this is:

Start C:\Users\userguy\appdata\Roaming\mjusbsp\magicjack.exe /scf _magicJackPersonalDataRoot Y:\magicJack

  • Of course, substitute your user id for “userguy”.
  • On Windows 7, you’ll need to copy the \Roaming\mjusbsp\ folder from your XP installation. If it’s not available, see if someone can zip theirs and try it. Sorry, but either way it will trash your Contacts list, Call History, etc.
  • Y: is the Removable Drive created by MagicJack (FAT format, default block size), not the “CD” USB Image.

You can first try to just add the command line shown above to your startup folder. If the voice quality is ok, you might want to leave things as is. If it just doesn’t work, follow these steps (straight from the MagicJack support Chat standard procedures):

  • Find the Removable Drive created by MagicJack. Reformat it using FAT, default block size.
  • Go into Administrative Tools/Computer Management/Disk Management.
  • Change the drive letters for both the Removable Drive created by MagicJack and the the CD/USB Image. Change the command line shown above from Y: to the new value. Cross fingers. Reboot.

To install MagicJack as a service, there are a few options.

DISCLAIMER: This has been reported to work on XP, possibly on Vista. Given the variance of any user’s machine hardware/software and adding on the uncertainty of what MagicJack will actually do, all I can say is if it works, and continues to work, great. Otherwise, give up, bail out and use the command line option. Note the strikethrough over the Windows 7 items below, and the Addendum at the end of the article.

  • Use the Instsrv.exe/Srvany.exe method. Search for the procedures, and download the Resource Kit Tools if necessary. It’s good to have them around anyway.
  • Or, download ServiceShell from, and try/buy. You can cheat and use it to start, then substitute the path and executable for srvany.exe for the serviceshell.exe.
  • Use the local service account and check desktop interaction. I’ve seen recommendations to create a MagicJack user account, etc. and run the service with that account but I did not see a need for that.
  • And in Windows 7 at least, the MagicJackloader.exe I’ve seen in some documentation doesn’t work, so be sure to use MagicJack.exe as shown above.
  • I haven’t been able to get the service to work installing it using sc.exe, which I expected.

In Windows 7, there is still a downside. The Interactive Services Detection window appears, and lets you know MagicJack is trying to do something, and not quite right. I tried changing the compatibility sessings on the executable, but no help. Since starting MagicJack as a service doesn’t show a tray icon, the application is hidden in the Interactive Services window:

I’d recommend that you right click and pin the window to the task bar. If you click on “Show me the message”, it will take you to the MagicJack user interface screen.

Some users wouldn’t care if they never saw the user interface screen again. You can uncheck the interact with desktop option for the service, and that will do it. Otherwise, if you switch back & forth from your phone to your Microphone/Speakers or use the contacts, call history, etc. then you’ll want the UI. Before running it as a service, using the Microphone on my Logitech QuickCam and regular speakers was a mess. Now it works fine. It also does not show the user street address at the bottom or 911 calling info. I decided not to try it and tell the 911 dispatcher “just checking, thanks”.

On a tangent, a couple of years ago someone on “Good Morning America” suggested that viewers “try out” their 911 service as a test, with a net result of thousands of pissed off 911 dispatchers nationwide. Even better is another VOIP 911 incident I read about (I’ll only say the VOIP company’s name started with “V”). A man’s house started on fire somehow, he called 911. The Fire Department went to the address, but it was his address prior to moving to his current (and still burning) address. Luckily the residents there had his new address, and Fire crews rushed on over. However, the guy kept running back into his house to rescue his downloaded music CD collection. They finally had to taser him, throw cuffs on & shove him into a squad car. No word on whether he was charged with pirating copyrighted music, or if they just let it go.

So if anyone tries out the MagicJack 911 service, let me know if it works or not. I’ll be glad to step aside and let someone else test it out.

Addendum/Update, Friday, March 6, 2009:

After further testing, I must insist not even thinking about possibly maybe considering using the procedure above  “To install MagicJack as a service”, at least in Windows 7. It did indeed work well, at least for a couple of calls. Then it proceeded to just fall apart, exhibiting a variety of malfunctions. In my case, the “screw this” threshold was crossed by a huge margin during a phone call that should have lasted two minutes but instead lasted more than ten minutes since I had to ask for at least two repeats of everything the caller on the other end was saying.

Sorry, but I just don’t call too many people, and if I don’t recognize the incoming number, I don’t answer. Otherwise I would have posted the update much sooner.

For now, until there are changes from MagicJack or Microsoft, I’d recommending using the following command in your startup (refer to the notes for the command above):

start Z:\Users\userguy\appdata\Roaming\mjusbsp\magicjack.exe /scf _magicJackPersonalDataRoot Y:\magicJack

Don’t bother using the /HIGH start parameter, or boosting the priority of the MagicJack task. It seems to actually make voice quality jittery (or more so). Good luck, and I’ll pass on MagicJack MagicFixes when they are released.

{ 43 comments… read them below or add one }


1 May 22, 2009 at 10:56 pm Thumb up 0 Thumb down 0

Just download Windows 7 RC… Works just fine



2 August 9, 2009 at 8:55 pm Thumb up 0 Thumb down 0

I’ve been using MJ on my my laptop with Windows 7 build 7100. No problems here. It works just as good as it does on my custom desktop running Vista


Christopher Roberts

3 August 19, 2009 at 2:26 pm Thumb up 0 Thumb down 0

How is Windows 7, I know it looks good, but is it faulty?


Andy K

4 August 26, 2009 at 2:16 am Thumb up 0 Thumb down 0

I recently installed my own home network including phone lines, cable, and high speed internet in each room of my house (including garage). I use Magic Jack for my home phone service with an inexpensive DECT 6 phone system. I have 8 phones that ring and produce excellent quality calls. All DECT 6 phones and a fax machine run from a single Magic Jack unit running the lastest update as of Aug 2009. I have my Magic Jack connected to a externally powered hub to support the extra current needed for multiple cable runs.

I am still using XP and use the method:
start X:\…mjusbsp\magicjack.exe /scf _magicJackPersonalDataRoot Y:\magicJack

This setup has been working without problems for two weeks now and I test the device daily. One of my favorite features is the conversion of voicemails to email. Even at work I am still able to receive messages left in an instant without having to tote around my Magic Jack.

Be forwarned, from one who has learned the hard way.. Do NOT buy a similar device called NetTALK. The device claims to work without a computer “which it does” but, more than half of the features it claims to support “even right on the retail box”, it cannot do. No voicemail, no conference calling, no speed dial. Unless you are sitting and staring at the phone waiting for it to ring, well I guess your not going to get the call. This complaint was confirmed true by three customer service and tech support persons at NetTALK. Beware!

Go with Magic Jack it’s been tested by thousands of customers. The major retail stores are even willing to carry them. I would not buy a multiyear subscription though. You never know what might be invented in a year or two from now. Somthing possibly better and even cheaper to operate.



5 December 10, 2009 at 9:17 pm Thumb up 0 Thumb down 0

I’ve been using MJ for over a year now without issue. I’ve done testing on different computers and different internet connections and I’ve found that MJ works as advertised on Windows XP through Windows 7 but you can get call problems if the internet connection you are using is not fast enough. I know I’ve had some issues with low quality internet plans family and friends use that only provide 256k or less Upload speeds. I stress that it is the UPLOAD speed that seems to make the difference with VOIP plans. I know in theory it “should” work with much less but from experiance with Vonage and MJ I know it requires a higher UPload speed like 300-512k for always reliable call quality. So don’t worry so much about the advertised Download speeds internet providers claim as much as ask them what the Upload speed they provide is…or better yet just test it using a speed test online. Then you should be fine with a wired connection. If you are having issues on Magicjack with you being able to hear the person ok but they can’t hear you it is especially pointing to an upload limitation. I won’t get into using it over wireless LAN though it “should” work fine as long as you have a strong signal.


alphonsis best

6 January 4, 2010 at 1:41 am Thumb up 0 Thumb down 0

Having problems with Magic Jack not working with Windows 7 Ultimate? Go to, click on customer care, then click on windows vista upgrade. Download that to computer. You should now see the magic jack short cut on your desktop. Unplug the magic jack unit from computer, wait 15 seconds, then plug back in to usb. Now click on magic jack short cut. It should now work!!!


Dan Kennedy

7 January 15, 2010 at 3:48 am Thumb up 0 Thumb down 0

Tip: Redneck Fax
I have Windows 7 Ultimate on my portable (With RJ11 jack)
I have Windows 7 Ultimate on desktop where magicjack has been working well.(No RJ11 modem on this desktop)
I needed to send a fax.
I plugged cord from magicjack into my portable RJ11 (internal modem)
I opened the Windows 7 Fax and scan program.
Put in the phone number on the to line area code and phone number.
(I am in socal USA)
C&P information to fax in body from Word doc.
(I had go change the default rule on my location to a 1 in long distance)
Hit send fax. I fell down when it worked.



8 April 8, 2011 at 6:38 pm Thumb up 0 Thumb down 0

LOL!! redneck fax!!



9 February 26, 2010 at 1:51 am Thumb up 0 Thumb down 0

Just go to now it works like a landline.



10 February 27, 2010 at 5:38 pm Thumb up 0 Thumb down 0

Thanks for the information!



11 March 3, 2010 at 7:53 am Thumb up 0 Thumb down 0

I just got a new laptop with Windows 7, but I, and MagicJack Techs, cannot get a good quality audio. It breaks up and sounds crackly. We’ve spent everyday/nite for over a week and still not working! I’m feeling that this new program or the Windows 7 or Dell, has some hang-up that is not allowing it to make the connection. Any remedies? And please remember this…I am NOT a computer wizard or even close…LOL Thanks!



12 March 13, 2010 at 4:54 am Thumb up 0 Thumb down 0

Thanks alphonsis best. The windows vista upgrade got my MagicJack working on Windows 7!

Here is where you can find the file:



13 March 28, 2010 at 9:01 am Thumb up 0 Thumb down 0

Damn! Why are you people use magic jack? I will tell you why magic jack sucks.

1. Magic Jack is dependent. (Won’t work if your computer is off, because the device must plug to the computer.)
2. Magic Jack rely in software. If the software gets error then this is feels you shit!.
3. If your USB port have errors then you cannot use magic jack.
4. Magic Jack uninstaller is business in other words it’s for sale. Mostly software uninstaller is free. The author of this gadget make you fool to make profit of it.

So why using Magic Jack? There is another gadget that is better than Magic Jack. This gadget is owned by TimeTelecom. I use it and I don’t have software problems.

Feature of TimeTelecom.
1. TimeTelecom Voip Phone is independent device. Because this device no need to plug into computers. You only need internet connection.
2. TimeTelecom Voip Phone don’t rely in software. So means you cannot experience software error and no need software update.
3. All you need to make it work is to pay the bill.
4. TimeTelecom have no Operating System Requirements etc, as what I said you only need internet connection to make it work.

So think of it!!!


wendy b

14 April 7, 2010 at 10:30 pm Thumb up 0 Thumb down 0

oh where to begin i have had windows 7 for 4 months now and majic jack for 3 months now and only had a few problems with it, no big deal, but now after spending hours on the computer with a live tech and tried to get majic jack working again, we was not able to do this( on new computer) so they had me install it on my old computer windows xp and it worked fine. only problem is old computer is in my 7 yr old childs room, and now i will have to run 2 computers which old one uses a lot more energy!!! so why did the majic jack work on windows 7 for 3 months???? and now it dont!! is there anyone who can get it working again? so i dont have majic jack in her room and run 2 computers all day



15 April 25, 2010 at 11:26 am Thumb up 0 Thumb down 0

I’ve been using MagicJack for quite a time on Windows XP; I like that it is cheap and works and if the computer is not on I get the audio file in my email.

I’ve now a new Windows 7 PC and had a little trouble getting MJ to install, but the trick was that the first time the MJ was plugged in and it said software installed, the MJ software really was not installed. I gracefully disconnected the usb MJ and then plugged it in again, and this time it installed completely so that I’ve the executable and even my phone numbers.

Then I had a little trouble getting a call to where I could actually hear the remote phone through my computer (I’m not plugging any phone into the MJ phone jack). Just had to fiddle with the Menu and Volume/Headset Control… to get things working just great.

Now to test the MJ calling from China…


robert elgersma

16 June 18, 2010 at 6:12 pm Thumb up 0 Thumb down 0

this easy way get magicjack work’s windows 7,plug m/j into coumpter,hold windows flag down,on key board and letter r at same time next,clear the line box,now enter appdata press ok do you see roaming?dobble click,do you see mjusbsp?dobble click,do you see ug00000?dobble click,do you see set up magicjack?dobble click on that,your done,,, it’s easyer when you do it a few time’s,if your good,youll figure a shorter way..



17 June 23, 2012 at 1:21 am Thumb up 0 Thumb down 0

Well I would imagine there would be a shorter way other than what you offered.

What the hell are you talking about?

You’re grammar is so poor not to mention your spelling its a wonder you were able to leave a comment AT ALL!

What is dobble? Dobble=double? And what is “ugooooo”? I wont get on you about the quad commas though. Please please please, I beg of you, please learn to spell better. Please learn how to format a sentence to where its readable. I know this is in text and you cannot hear my tone of voice so Im certain it comes off insulting, but, I dont know how else to submit this. That was very difficult to read and understand yet Im sure some people out of desperation will try, and end up messing up their computers. Well, I guess that would be on them. No gun to their head. I on the other wont dare to attempt this suggestion. Thanx anyways. Take Care.


B2B marketplace india

18 August 13, 2010 at 1:10 pm Thumb up 0 Thumb down 0

Very beautiful post thanks a lot i will like this and going to tweet this.


B2B market place

19 September 12, 2010 at 1:34 pm Thumb up 0 Thumb down 0

Nice Post, resourceful tips. Thanks for sharing valuable resource.It’s really helpful for me.



20 September 15, 2010 at 2:07 am Thumb up 0 Thumb down 0

I’ve been using this magic jack thing for a while now. Not any significant problems, but problems are as follows:

-It does not always auto execute on Windows 7 for some reason. I need to occasionally unplug it and plug it back in to get it started.

-I have lost all my contacts TWICE and am a bit irritated by this. I see no reason for my contacts to be stored anywhere but in my own computer.

-One in a while, the user or myself can only hear dead air; calling back sometimes fixes this problem. Thing is, people assume you are pranking them and do not answer.

-There is no way to block specific numbers or private numbers. I do not like private numbers to be able to call me.

MagicJack would do much better if they fix the above problems. I have no plans to renew my service. I will start using Google phone(a free service)…


David Sirman

21 September 20, 2010 at 4:44 am Thumb up 0 Thumb down 0

I have Windows 7 Professional on my Dell E5400 laptop. I 1st had the magic jack on my Dell Desktop which also has Windows 7 Professional. Upon plugging in the magic jack into the USB port i had no problems. However i needed the Magic Jack on my laptop and that’s when i 1st starting having problems with my Magic Jack. I could not get the device to load the software. The laptop appeared to completely ignore the Magic Jack device. I ended up downgrading to Windows XP Professional SP3. This did absolutely no good. So I backed up all my data and put a fresh install of Windows 7 Professional. Once i did this i installed all updates for the operating system. Then finally i plugged in the Magic Jack and the device worked perfectly. As well the Magic Jack had excellent voice quality and handled faxing like it was hooked into a regular phone line. I’m not saying you must do this to make your Magic Jack work. This is just what i did to make my Magic Jack function correctly.



22 October 19, 2010 at 11:29 pm Thumb up 0 Thumb down 0

My mj JACK is loose at the part that goes into the computer and I need to hold it up to make it work. What can I do ? Can I get it replaced at a discount ? It is not repairable.


Jake DeVinney

23 January 1, 2011 at 5:51 am Thumb up 0 Thumb down 0

I fixed the MJ problem…I followed your above advice to copy mjusbsp folder to C:\Users\userguy\appdata\Roaming\ from your XP installation. I then plugged in the MJ USB and found windows asked to run or open files. I opened the files on the MJ USB and changed the autorun.txt at the very bottom from:


and saved the file. Magically the MJ works! No hassle, no fuss.



24 January 8, 2011 at 3:53 pm Thumb up 0 Thumb down 0

After installing magic jack on win 7, laptop speakers work fine but the mic doesn`t work with magicjack. The mic works fine on laptop.

Can somebody help me with this ?



25 January 12, 2011 at 3:17 pm Thumb up 0 Thumb down 0

It’s a shame you had a bad time with M.jack and windows 7. I used mine just the same as on vista and call quality is excellent, much clearer than cell. Maybe it’s your location? I’ve used mine in California for about 2 years, north and south.


Bikaner Directory

26 January 12, 2011 at 4:22 pm Thumb up 0 Thumb down 0

nice post,thanks for sharing this resourceful tips with us.Its really helpful for me.


Ivan Monet

27 January 14, 2011 at 12:35 pm Thumb up 0 Thumb down 0

I have 2 Magic jacks at home and 10 at work, had some call quality problems with them at times. I run windows XP SP3.
I found a sure cure for MJ Problems. I bought a small program for $9.95 called Magic Jack Uninstaller. 1) Remove the MJ, Run MJ Uninstaller to remove all traces of the MJ from your computer & registry. 2) reboot. 3) plug in your MJ and let it start up. 4) Run MJ Upgrade from the MJ Website. 5) Reboot again.
Your MJ will now work great, call quality will be vastly improved. If you get an Echo on the line, do the following. 1) go to Menu on the MJ SW, cleck headset volume control and lower the volume for Mike and Speakers to about 1/3 of Maximum.
The above procedures have fixed any MJ I had to work on 100%. (We have 10 MJ’s at work for our Telemarketers).



28 September 1, 2011 at 10:53 pm Thumb up 0 Thumb down 0

My majicjack is showing error 3 .i can’t make call to anyone it starts but don’t work but it worked perfectly 7 days earlier …but its not working now what should i do .can u help me to solve this problem



29 September 1, 2011 at 10:54 pm Thumb up 0 Thumb down 0

by the way i use windows 7



30 September 18, 2011 at 7:33 am Thumb up 0 Thumb down 0

My son gave me magicjack.
At first few times, worked very well.
I have a laptop so it is unplugged at times.
I plugged back up and then it is showing error 401. (which tells me to restart and try again – it does not work)
It is not working.
The first time it showed up and could not get anything working after working on it for over 4 hours trying everything.
I have Windows 7 and all is updated as it should be.
I finally called Magicjack and after being on the phone with them over 6 hrs staight and being transferred everywhere, I fianally got to a person that helped me. Ironically there was the second person I talked to that took me to the place that this person helped me through. The first person that took me to it just did not have the authority to go into my computer with my permission to get it working. I have no idea what this person did completely. I just know it worked. It did until I unplugged it and had to come back and plugged it up and it did not work again.
To say the least this was a couple of months ago and I had gotten so aggravated that I just put it on the shelf and left it alone….doing without any phone.
I decided to try it again and it still shows
checked normal hi speed shows my number shows magicjack – please restart your magicjack and try again [error 401] Shows not connected, no 911 available {which I know we have no 911}
It states “your contacts were not downloaded. It you would like to try again, click here.” {nothing happens no matter how many times I try}
I went into folders and hit magicfeaturesPlugin and now it says register your software license key – which to be honest I do not have anything with me… so have no idea what that is (another problem I will have to figure out).
I just need to know how to keep my magicjack working correctly – when I plug up – it works like it did when I first got it for my Birthday.



31 September 25, 2011 at 6:40 am Thumb up 0 Thumb down 0

my contacts do not download anymore–any ideas?



32 September 25, 2011 at 6:43 am Thumb up 0 Thumb down 0

error code was 401



33 October 17, 2011 at 9:20 pm Thumb up 0 Thumb down 0

I live in Montréal canada and I send my majicjack to my family in algeria to call me since 2 years.
it worked perfectly all these 2 years.
from 2 months I can’t make calls and i have the message “please connect to the internet and double click here [error 3]”
I opened the ports 5060, 5070, and I opened the ports 49152, 65535 in my router (modem) because I find these instructions in the majicjack’s website to resolve the problem but until now I still have the same problem … please i need your help



34 December 11, 2011 at 5:12 am Thumb up 0 Thumb down 0

Problem: I plugged in the magicJack plus and it installed softwares and updated and then started. I see the dialpad and on top of that another screen pops up which says: “Insert you MagicJack to make calls. No MagicJack? Click here”. I tried unplugging and then plugging back the MJ+ few times, same problem. What do I do? It is not recognizing the device and so not taking me to the registration page. Thanks
I spent 10 hrs with tech support, they login to my PC click few things then reboot laptop and thats it, loose the chat. I am fed up on how to get past this screen



35 July 3, 2012 at 10:16 pm Thumb up 0 Thumb down 0

Don’t bother to fix it, I’ve done it three times now and it’ll just come back again in a couple days anyway. Time to find another product.



36 January 2, 2012 at 12:16 pm Thumb up 0 Thumb down 0




37 January 5, 2012 at 1:39 am Thumb up 0 Thumb down 0

I’ve used MagicJack for several years locally and from China, with Windows XP and 7 with few problems. I also use MagicTalk a lot since it allows me to call without the dongle and it’s free. My XP computer started using a lot of CPU time and causing MagicJack bad reception/connection problems (I had to keep hands-off while talking through the MagicJack to avoid bad connection/missed sounds problems. So I bought the MagicJack Plus so that the connection isn’t dependent on my computer; it connects directly with an ethernet connection (to my modem and switch) so there is no call breakup when I use the computer (and MJ Plus doesn’t require the computer at all) — works great


nuha yassin

38 June 13, 2012 at 3:44 am Thumb up 0 Thumb down 0

I do have a real problem using the majec jake can u please help me out.



39 July 3, 2012 at 10:15 pm Thumb up 0 Thumb down 0

Getting MagicJack to work in Windows 7 is an absolute nightmare. I work with computers enough to troubleshoot software problems on a regular basis but the host of issues that plague MagicJack are astounding. I’m here, trying to fix this garbage (yet again) and it’s just not worth the trouble. The claim that all you have to do is “plug it into a USB port and that’s it” is blatantly untrue. Avoid this terrible product at all costs.



40 October 10, 2012 at 12:02 am Thumb up 0 Thumb down 0

Good hi certified


How to install windows xp from usb

41 November 1, 2012 at 7:42 pm Thumb up 0 Thumb down 0

I like it when folks get together and share ideas.
Great site, stick with it!


Don in Toronto

42 April 8, 2013 at 12:24 am Thumb up 0 Thumb down 0

I have the magic jack plus – hooked into my router but have been trying to renew it for a week (6 hrs total) and I get an oracle error when I have submitted my visa info…..I tried a vista notebook, xp notebook, and a windows 7 – 32 pc…. I guess they really dont want my money…. I know last time – I looked at doing a java conflict fix – it worked and it has been working for the last 2 years – but not now… anyone have similar problems.



43 November 5, 2014 at 11:35 am Thumb up 0 Thumb down 0

It’s wonderful that you are getting ideas from this piece of wriing as wel as from
ouur argument made at thnis place.


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