A tip submitted by LearnQTP reader Ajay Mohan.
pal_drv.sys is the system driver that may be the culprit for your frequent QTP crash issues. This driver was developed for text recognition mechanism that QTP doesn’t support now. To solve the QTP crash problem, you need to uninstall this driver and here is how:
- Go To command prompt. [Start > Run > Type cmd]
- Change directory to C:\Program Files\HP\QuickTest Professional\bin using the command
cd C:\Program Files\HP\QuickTest Professional\bin - Type in nt_tr.exe –remove as shown in the image below.
- You will see a message box stating Text recognition has been uninstalled.
- Reboot machine. It should work without reboot as well but just in case.
- Try opening QTP, it should no longer crash now.
Did this solve your QTP crash issue? Let us know in the comment section below.
If you too want to share your QTP related tips, contact us.
Related:
Thank You Ajay.
58 comments ↓
Hi,
Ok ,but could you tell me for what QTP version has a problem.right now i am working on QTP 10.00 version.after instalation of cumulative patch, i does not face any problems (QTP 10.00).
Regard
Could you elaborate on why this driver is a culprit for QTP crashes? I understand that the driver was developed for currently unused functionality, yet this does not explain how this driver is a culprit for crashing.
@Dev: No problem then. Do the above steps only if you face a crash.
@Mike: Acc. to Ajay, the uninstall of this driver solved his team members QTP crashing issues. I “ll try to get Ajay to answer your question on how he nailed this particular driver.
That would be great. We all seem to have QTP crash from time to time and many know reregister, etc.. It would be excellent to actually start understanding WHY QTP crashes. Understanding how it was arrived at that it was this driver may very well be much more valuable than just knowing to remove the driver. Great find by the way.
I followed the instructions above only instead of uninstalling the exe the MsgBox came back saying that “Text recognition has been installed.” not UnInstalled.
Also the file was in the folder path (C:\Program Files\Mercury Interactive\QuickTest Professional\bin).
My QTP crashes way too often.
Hi ,
I tried above solution but no luck
,but I have another solution for QTP crash..I tried creating a new profile and its working fine(no need to uninstall QTP)..I think QTP 10 has a high dependency on profile.If profile gets corrupted ,it appeares like QTP has got crashed ..if we create a new profile it will work fine..Did this solve your QTP crash issue? Kindly let me know in this forum.
@Mike: Yes for QTP 9.2 and below, file will be in that path. The path in the post above will be applicable for 9.5 and above. It looks like, for you the driver was not installed in the first place. If you repeat these steps you can see the required message. If this didn’t help you, try to repair the QTP installation and as a last resort, may be you can contact HP support or re-install OS on your system.
Thanks Arun for the tip.
@Mike : Could you try creating new profile?
Hi Ajay / Ankur
I have a different problem with QTP. My QTP 10, hangs and then 99% of the Menu Items go missing. I mean, the main menu File or View would be there, but when I open the same, none or just few items are displayed.
To solve this, I go to the regedit and rename the existing Mercury folder (example; MercuryOLD). Next I open QTP againa nd all the menu items are back again.
Please guide me as to why this issue comes in the first place and is the solution I put inplace correct?
Thanks in advance.
Charu,
Thanks for the Tip.
Regards,
Nagarajan.S.A
The problem which I have been facing very frequently is on IE6 and QTP 9.2 wherein while running my script my IE crashes much too frequently and I get to receive a Microsoft IE Error(“Send” “Don’t Send”) Dialog box. I tried contacting HP but they were not able to resolve the issue and I need to do my testing on IE 6. Please help me out with some concrete solution if possible.
I am running the test script through Test Batch runner. QTP crashes for few of script which are taking longer time for execution.
Can you please suggest to overcome this ?
This didn’t solve my QTP problem. I am using the Application Object and on the 2nd time through it crashes consistently
I am encountering this issue during insertion of checkpoints. I haven’t tried your solution yet, since I don’t think this is caused by the text recognition. Can you please help?
Nevertheless, thanks for the advice
I am having an issue with this driver during start up. paldrv is failing to start. This seems to affect running scripts from QC.
Any ideas?
Event log:
Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7000
Date: 1/15/2010
Time: 12:07:37 PM
User: N/A
Computer:
Description:
The paldrv service failed to start due to the following error:
The system cannot find the file specified.
Hi,
can anyone please tell me how to know wether the QTP running on my client.
that is i mean to tell on the remote client
Hi, I followed the instructions but it does not resolve my problem.
My QTP10.0 crashes ten out of ten times when using a random nnumber parameter.
Can anyone please tell me the possible root cause?
Thanks in advance.
When using QTP 10.0 use the following parameters.
Install pal_drv:
%ProgramFiles%\hp\QuickTest Professional\bin\nt_tr.exe /REGSERVER
Uninstall pal_drv:
%ProgramFiles%\hp\QuickTest Professional\bin\nt_tr.exe /UNREGSERVER
Following also can be used within a Custom Action if you’ve repackaged QTP.
I have installed QTP 10.0 and every time I try to open a saved file, QTP crashing with run time error.
Please help me how to get out of this
@Nagavishnu
Try to install QTP_00604 patch.
It will solve the issue..
I just wanted to make sure people who read this article understand correctly: pal_drv.sys itself doesn’t lead to QTP crashes! It is a kernel driver, so if anything goes wrong with it – you’ll see BSoD.
So if during text recognition you see exceptions in *other* processes – the most probable cause is TrAgent.exe, which is an additional component that helps text recognition driver to catch the text. If that is the case – renaming TrAgent.exe into something else might help.
My QTP10 suddenly got in state where by as soon as you selected any menu item it would crash. And like Arun Prakash mentioned – creating a new user profile fixed this issue without having to uninstall QTP.
A diagnositic that creating a new profile might fix the problem is the observation that QTP did not crash for a different user on the same machine.
QTP opens, checks license, loads add-ins, connects to QC project, and when it is time to show main screen/editor, it shows only the toolbars (left half of the screen … and shuts down!
I have tried everything but no success. It was working fine this morning till I launched a BPT in debug mode from within QC and QC could not launch QTP
Have restarted my machine, cleared sys tray several times, cleared the cache, but no success
Then I repaired QTP through installation disk but no success
Uninstalled and installed JRE (standard) no success
I am stuck!
When launched from within QC it does not show anything and crashes. When I run QTP stand alone, it finds licenses, load add-ins (I have tried w/o loading add-ins), connects to QC project as usual, opens the editor in a way that I see only the top menu bar nothing under it and then BOOM! it shuts down
It is killing me … can anyone help?
@Malik:Try to install QTP patch: – (QTP_00604),if it is not solving your problem then create new profile in your machine it will work…
I have the same issue as ttguy, however it is not clear what you mean by creating a new profile, can someone please clarify the procedure.
Thx
@Dom on creating a new profile
copy your favourites from C:\Documents and Settings\\Favorites to a backup location of your choice
Then delete the folder
C:\Documents and Settings\
Restart your PC.
This should cause XP to create a new “profile” for you.
i m useing the QTP 9.2 on XPSP3,and vista ultimate. when i installed the QTP at the begin , it was correct. but some days later , the boy crash time by time……
i uninstal the nt_tr.exe，but the issus not resolved……
please tell me how to do via my mail mingli_a@163.com
thanks!
I too am facing the same problem as charu, and the solution tried out by charu is unfortunately not working for me…
Any idea why the submenu items go missing? I mean File is there but i dont get to see File>>Settings
Do i need to reinstall QTP now? Am using version 10.0
Thx ttguy!
@ Priya – try deleting your profile as mentioned in post #29
Hello. I have problems with WPF-applications, Spy cannot recognize it for a long period. For example, when I clicked on the hand of Spy then after 10 seconds Spy can recognize(when I move my mouse) one object, then second, third, forth and then QTP hangs or just appeared blank window instead of my WPF-browser-application. I think it’s problem with PresentationHost.exe process, because when I kill it – QTP continues to work normal, or sometimes this process disappears(destroys). I tried on another PC – the same problem. How to solve this issue? (with other applications, for example, SilverLight 3.0, QTP works normal)
QTP 11.0, .NET FW 4.0, WPF-browser-application, Internet Explorer 8.0, Windows XP
Hi , Good to c so many people trying to address problems.
I am using QTP 10.0 with MTM 8.2
My Problem:
I run a batch from MTM, QTP script hangs at say 20th or 80th script and thus MTM is in running state.
MTM throws some memory leak errors or when i quit the applciation JIT debugger error also comes up.
Priya, try this…
right click in the in free sapce of toolbars – select ‘Customize’ option – new window will get opened – GoTo ‘ToolBars’ tab – select ‘RestoreAll’ option.
Now check whether you are getting all options in menus.
My instructions on creating a new profile are not quire right. I should have added a folder into the instructions. Deleting the whole C:\Documents and Settings\ folder like I say my original instructions is probably bad.
copy your favourites from C:\Documents and Settings\\Favorites to a backup location of your choice
Then delete the folder
C:\Documents and Settings\\
Restart your PC.
This should cause XP to create a new “profile” for you.
Hi!
I was facing a QTP 9.5 crash issue which i was resolving every time by creating new system profile as uninstallation of Text Recognition didn’t worked for me. So finally i was able to access QTP from my corrupted system profile in which my QTP was crashing priorly. Please try as below if it work for you. Login system with the same system profile
1. Run>>Regedit
2. Go to HKEY_CURRENT_USER>>Software>>Mercury Interactive. Or you can rename only QTP folder available in above folder
3. Rename the folder
Regards,
Monica Sharma
Hi,
On one of the environment I am facing the problem of QTP crashing whenevey i try to open any Test Case Manually and also when i run the script the scripts crash. I tried re-installing QTP.But it didnt help. I hav uninstalled thta nt_dr.exe but still the same proble.
also sometimes i do get the error as “Activex cant create object”
Hi,
I am facing a different issue. I have installed QTP 10 with IE8. Till yesterday there was no problem. But today when i tried to save my QTP script or try to open any new script using ‘Save as’ option in QTP, the QTP system crashes saying-”Internet Explorer has stopped working”.
I tried the above solution also but it didnt worked. also installed patches- QTP_00684,QTP_00604,QTP_00626.
But this problem didnt resolved. I am not able to save any script or open any script.
Please help.
Regards,
Avneet
Thanks Rajesh and ttguy for the solutions. I tried with creating a new profile and it worked.
I am using QTP 11 and we are planning to upgrade to QTP 11. but not on all machines. So would there be any impact if the same script is being run on different machines with different QTp versions?
@ Abi
Yes this can be a problem. Well I suspect it will be. I don’t know about 10 > 11. But in previous migrations from 8>9 and from 9>10 you would open a test that was written in the old version of QTP and QTP would have to upgrade it for you as it opened it.
You had the option to open it read only so that the upgrade was not commited. But as soon as you save the upgraded version it will not work on the lower version of QTP.
So you might be able to do it – open all your tests on the new version as read only versions.
But as soon as you want to make changes you have to decide if you want to edit using the new version – in which case you will have to upgrade all your machines.
Or you can edit on the old version and then run on new and old.
@Rajesh
Thank you very much
The tip worked perfectly fine… Thanks a lot .. after using the “Restore All” option in Toolbar Customization, my menu items returned back..
Here I thought I was the only one who had QTP crashing as often as it does, but it seemed impossible that it could happen daily and be MY machine … or my fault since I have never done anything very stressful to QTP.
Thanks for the fix! Here’s hoping my crashes go away.
The QTP Crash is occuring in our application when we click on the flex button. We are able to record the object correctly but when we try to click on it , the QTP crashes with this error An unhandled exception occurred with QTPro.exe …” Can someone please help me?
I followed the above steps but QTP still crashes even more.
Hi Ankur
QTP11.0 trail version is crashing when I try to RUN a script. I tried the steps you have mentioned above but to no avail.
When i try to run a script a program called drvinstallercore.exe tries to access my machine and then qtp crashes immediatly.
Any help on this will be appreciated.
Thanks
wilma
Hi
I am trying to RUN a script using QTP11.0 trail version and it crashes.
When i try to run it an unknown program called drvinstallercore.exe -c is trying to acess my computed and QTP11.0 crashes.
It crashes only when I try to run a script.
Add-in’s enabled are ActiveX and visual basic and the appliation being used is flight reservation.
OS-Windows vista
Any immediate help will be appreciated.
thanq so much priya now my submenus all are visible.wat u said rigtclik on free space toolbar and clik on toolbar and clik restoreall i folow this. nw its working fine
hi
I am facing qtp cashes during Execution, in QTP 10 Version.so if i uninstall nt_tr.exe ,will it be hepful?
The post suggests executing nt_tr.exe with the –remove switch. I don’t think this is uninstalling nt_tr.exe but rather removing some sort of text recognition mode.
As to whether this will help your issues – I dunno. Make a backup of your pc and then try it !
hi !
while using QTP for some time, i generally encounter with the problem.. which is ..
all keys are pressed as if they are pressed with shift i.e. (shift + any key) however. shift key is not pressed.. Right click of mouse doesn’t work on desktop to refresh..
on the browser the Mouse-wheel acts as backward or Forward button… Rather then UP nd Down. all letter goes in CAPS…
when i restart then it comes to normal.. however i encounter again with similar problem.. if i start using QTP again..
kindly tell me some solution… to this.
I have just installed QTP 10.0 on my windows m/c. I tried to record a simple yahoo application test but its not recording anything.
I would really appreciate if someone could tell me what the problem could be?
Thanks in advance.
Shikha
Hai all,I am facing a different issue.After restarting a remote machine where QTP is installed,QTP object spy and adding objects to local repository is not working.When I clicked the object spy button-Hand button,it is just blinking.Not going to the application opened.But record and play back was working fine.Before rebooting ,it was working fine.Kindly provide me solution to resolve this issue.
Hi Ankur,
From last one week I am facing the QTP crash problem.
While running the scripts if something goes wrong by the script or application(any obj is not there) execution stops and if I click on the stop button in the tool, QTP getting closed and the system will get restarted.
I uninstalled and installed,
I formatted the OS and installed QTP,
I changed the completed CPU and did the same in the other new CPU,
I tried with different credentials to log into the system and to run the scripts,
I tried with different VLANs
but no luck.
Please help me, I am getting no idea to overcome this problem.
Thanks in advance!
Regards,
Vishnu
hi ,
iam running a batch of scripts using a vb script. but after completing the first script the QTP is hanging. all the scripts are created in QTP 9.5 and i am running them in the same version. What could be the problem. Can you please help in this regard, thanks aish.
Hi,
I’m just trying to record a simple flight application script using QTP 10 & run it.
When running the script, it throws the error “The test cannot continue due to an unrecoverable error. Failure to run script. Description: The specified module could not be found”
Line (1): “RunAction “Action1″, oneIteration”.
Please help me out
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