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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: robm123 on August 31, 2010, 08:14:38 PM

Title: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: robm123 on August 31, 2010, 08:14:38 PM
I have a new Dell laptop with Windows 7 (64-bit).  Normally I install AVG but I thought I'd give Avast a try (the free version).  The install went fine, but when I run a manual quick scan it always hangs.  The current file shows "SVC: .NET CLR Networking".  
Any ideas anyone?
My version is 5.0.594.

Rob.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 01:53:08 PM
avast hanged when scanning that file to me too yesterday. now it hangs on the file acpipmi.sys

Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 02:18:35 PM
If possible, do the following, please (should work on Win Vista and Win7):
- disable avast! self-defense (avast! settings / troubleshooting)
- start the scan again and wait until it gets frozen
- open Task Manager
- righclick on AvastSvc.exe
- choose "Create dump file"

Then navigate to the location of the dump file (it's shown when it's done - you can copy&paste the path) and upload it to ftp://ftp.avast.com/incoming (ftp://ftp.avast.com/incoming).
Thanks.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 04:00:53 PM
your guide got to the message "writing to file" when dumping and it hangs there, nothing seemed to happen.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 04:39:15 PM
That is pretty strange...
What if you stop all avast! resident shields before starting the scan (that is about to freeze)?
(Btw, did you give it a while before concluding it hanged? Any hard disk activity indicating it might still be writing?)
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 05:04:51 PM
about 30 minutes.

i am pasting the dump file now to ftp://ftp.avast.com/incoming i didnt see a upload button. so at least it worked with the shields disabled.

it should be finished in about 19 minutes according to the file copying.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 05:33:03 PM
have you got the file now?
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 06:08:12 PM
Yes, thanks a lot.
A dialog box seems to be displayed by the service (which doesn't have access to your desktop, so it's not visible)... and probably waiting for some input. That's why the scan is frozen.

If I might ask for one more thing (which is actually the cause of the problem) - you have a shortcut "Valg av nettleser" on your desktop (probably added by a Windows update recently). Could you please also upload this shortcut to the FTP? (I mean the shortcut itself, which is a .lnk file)

Thanks!
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 06:43:40 PM
i have uploaded it :)
the shortcut is the browserchoice from a microsoft update, i use ie8 so i have not used the shortcut.

Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 08:51:41 PM
Thanks for the file. Unfortunatelly, the problem doesn't reproduce even with that... (sounds like a bug in Windows anyway... second in two days, looks like I'm really "lucky").

If I prepare a small test tool, do you think you could run it on your machine - to see of any message appears?
Thanks.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 09:17:26 PM
yes, i can try the test tool.

can i delete the two files i uploaded to the ftp now?
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 09:22:46 PM
You can certainly delete the dump.
Please keep the link on desktop for now - that's what the tool will try to check.
I'll be back soon.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 09:46:12 PM
OK, here is the tool: http://public.avast.com/~glucksmann/LinkCheck.exe
Just download it, run it from the command-line console and watch if a warning dialog (about the target of the link missing) appears. If it does, please note what is printed in the console at that moment (there are 5 attempts to do something, so it theoretically might appear 5 times; hopefully not).

Now I bet it won't appear at all... which is the worst thing, of course, as it doesn't really reveal anything.
(sorry, updated the file just know - used a wrong filename inside).
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: essexboy on September 01, 2010, 10:16:16 PM
Just completed a quick scan on windows 7 no problem and no browser choice. 4 minutes 25 seconds - nice  ;D
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 01, 2010, 11:30:42 PM
where is the command line console?
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 01, 2010, 11:45:49 PM
OK, please download the exe again; I added a keypress-wait at the end, so you can simply run the executable, without starting the console first.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: Vlk on September 02, 2010, 02:22:27 PM
You don't have to run it from the "command line console" anymore.
Just run it from the browser.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 02, 2010, 02:35:31 PM
when running your file i get asked to delete the browserchoice shortcut wich according to the dialog box is moved/changed

the command line shows:
attempt 1 QI succeeded, load succeeded.



Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 02, 2010, 02:39:32 PM
Erm, sorry, I'm an idiot... there's a bug in the program  :(
Could you please kill the program (Ctrl+C, for example) and try once more - I updated the file.
(Also, answer "no" to the question if you want to remove the link.)
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 02, 2010, 02:58:10 PM
it was 5 attempts, all the same

attempt (number) QI succeeded, load succeeded
resolve succeeded: c:\windows\system32\browserchoice.exe

Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 02, 2010, 03:00:09 PM
And all the 5 attempts displayed that dialog box?
(i.e. it was shown 5 times)

That's bad...
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 02, 2010, 03:03:36 PM
yes, it was shown 5 times.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 02, 2010, 03:21:26 PM
OK, could you please try the same with this file?
http://public.avast.com/~glucksmann/LinkCheck3.exe
Still 5 popups of that dialog?
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 02, 2010, 03:55:46 PM
it was only 2 popups now with that one.

Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: igor on September 02, 2010, 03:59:51 PM
OK, thanks a lot.
I'll update the code somehow - the fix should be released tomorrow in a virus database update.
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: spg SCOTT on September 03, 2010, 11:32:28 AM
igor,

I have updated to 100902-0 and also gotten the 673 program update and the scan is still hanging...

Did the fix get released yet or am I jumping the gun a little?

Scott
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: Vlk on September 03, 2010, 11:40:15 AM
I have updated to 100902-0 and also gotten the 673 program update and the scan is still hanging...
Did the fix get released yet or am I jumping the gun a little?

You're jumping the gun ;)

It will be fixed in VPS 100903-0, due in about 45 minutes.

Thanks
Vlk
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: spg SCOTT on September 03, 2010, 11:43:06 AM
Haha, ok...just checked the date ;D

the 2nd was yesterday... :D (i'm wondering if I even updated the definitions today...)

Thanks Vlk

Scott
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: Vlk on September 03, 2010, 01:19:36 PM
Soo... is the issue fixed with VPS 100903-0?

Thanks
Vlk
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: spg SCOTT on September 03, 2010, 01:27:18 PM
It appears so. Quick Scan finished without a problem :)

Thanks

Scott
Title: Re: Quick scan hangs on Windows 7 while processing "SVC: .NET CLR Networking"
Post by: maugrimx on September 03, 2010, 07:17:13 PM
no problems here anymore after the update.

thanks  :)