Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: jrukim on August 30, 2004, 09:52:29 PM

Title: With SP2 Avast unables setup of older software
Post by: jrukim on August 30, 2004, 09:52:29 PM
This was referred on another tread 2 or 3, days ago with other software including office 97.
I refomated my drive,with  a fresh install XP/SP2/avast  and all software I have. When I try to install Encarta Word Atlas (1998) and Paint Shop Pro (1996) clicking on setup nothing happens. Tried stop avast with no results.
However uninstalling avast the setup of that software runs ok and remains ok after the reinstalation of avast .
Seems to me this is an avast problem with the SP2 and older software ... ???
Any ideas ?
Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 30, 2004, 10:31:16 PM
Hm you won't belive. I encountered the very same problem.
I was unable to install Virtual Mechanics Web Dwarf 2.50f (web design software i use for my page) and some old (nostalgic) game F-22 Raptor Demo that i was playing long time ago. I clicked the installer,it extracted files to temp and then nothing happened.
I uninstalled avast! as you suggested and now both installers work.
My machine was fresh installed two days ago when i got bigger disk,so i don't think its a corrupted registry/dll or something. Possibly a WinXP SP2 issue.

I use Windows XP Pro with integrated SP2 and avast! Pro (right now i'll switch back to Home)
Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 30, 2004, 11:06:28 PM
Nope,i fully cleaned avast! Pro and installed avast! Home and the problem persist. Now i belive its related to SP2...
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 30, 2004, 11:19:27 PM
The easiest workaround is to remove the reference to the avast driver from \windows\system32\config.nt.

Please use the search feature of this forum (search for the phrase config.nt) to find out more...


Cheers
Vlk
Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 30, 2004, 11:32:23 PM
Ok thanks,but Web Dwarf installer worked just fine before and i have never edited this config.nt file. The last time i installed Web Dwarf was before i installed SP2 and it worked normally with avast! enabled.
Title: Re:With SP2 Avast unables setup of older software
Post by: jrukim on August 30, 2004, 11:46:48 PM
I also had  no problem installing those software before SP2.
Could the reason of this issue due to older  software  than Windows 98 ?
Title: Re:With SP2 Avast unables setup of older software
Post by: clanky on August 30, 2004, 11:51:15 PM
I'm having this problem with Office 97.

I reinstalled XP + SP2 from a slipstreamed cd.  After installing Avast 4 Home I couldn't install Office 97 or Via 4 in 1 drivers.  This has happened on 2 different pc's.  
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 01:30:19 AM
I suggest the avast! Home Edition to a friend, and after he install the Windows XP Pro SP2, he can't run an *.exe in a CD of HP because of avast!

After, he uninstall the avast! Home Edition and install the Symantec...
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on August 31, 2004, 03:00:13 AM
After, he uninstall the avast! Home Edition and install the Symantec...

When he starts to cry for help and support, just let us know  ;D
Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 31, 2004, 08:44:56 AM
Well he should get his butt here so we can solve that problem ;D

Btw that change in config.nt worked :) ,but am i less protected now or that entry isn't so important?
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 09:10:59 AM
After, he uninstall the avast! Home Edition and install the Symantec...

When he starts to cry for help and support, just let us know  ;D
I never thought that was because of SP2.
And he doesn't care about the support, if work, work, if doesn't work, doesn't work...  ;D
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 09:38:17 AM
This problem will be fixed in the next version of avast?
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 31, 2004, 09:57:55 AM
Here's a quick fix for the problem: just apply the following .reg file:

http://www2.asw.cz/~vlk/vdd2.reg


Important notes:
- this ASSUMES that avast is installed to the default folder, C:\Program Files\ALWIL Software\Avast4

- if you have manually removed the reference to the avast driver from \windows\system32\config.nt, just put it back.


Of course, this issue will be addressed automatically in the next program update.

Thanks
Vlk
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 10:04:54 AM
If we have avast installed in another folder, how we change the reg file?

Thanks
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 31, 2004, 10:08:37 AM
In this case, it's probably much easier to change the thing directly in regedit.

The VDD key should contain a single line in the form:

<your-avast-folder>\aswMonVd.dll



Cheers
Vlk
Title: Re:With SP2 Avast unables setup of older software
Post by: clanky on August 31, 2004, 11:53:58 AM
Excellent,  problem sorted   ;D

Thankyou

Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 31, 2004, 11:54:32 AM
Thanks,its working now :)
Title: Re:With SP2 Avast unables setup of older software
Post by: Chet on August 31, 2004, 03:04:34 PM
VLK, when I click on the http://www2.asw.cz/~vlk/vdd2.reg
the windows media player opens.  If I right click on the link and choose save target as I get a file named vdd2.mp3.

Chet
Title: Re:With SP2 Avast unables setup of older software
Post by: igor on August 31, 2004, 03:12:38 PM
Interesting, me too...
Anyway, just rename the .mp3 file back to .reg and click on it.
Title: Re:With SP2 Avast unables setup of older software
Post by: Chet on August 31, 2004, 03:14:29 PM
I did, but what the heck could cause this?

Chet
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 31, 2004, 03:54:32 PM
Hmm, really interesting... Maybe Apache (our HTTP server) somehow thinks that .reg files are audio streams - and IE agrees... ;D

Anyway, here's a zipped version - works OK:

http://www2.asw.cz/~vlk/vdd2.zip


Cheers
Vlk
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on August 31, 2004, 04:04:04 PM
FYI:

It's not only IE, Opera does the same. Both change the fileextension to .mp3

Firefox however thinks it is a quicktime movie ;D and leaves the fileextension .reg

Hope this little info helps finding/solving the problem.
Title: Re:With SP2 Avast unables setup of older software
Post by: RejZoR on August 31, 2004, 05:28:23 PM
Thats because server reports wrong MIME type :P
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 10:58:01 PM
Something like this?

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\VirtualDeviceDrivers]
"VDD"="C:\Program Files\avast!\aswMonVd.dll"
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 31, 2004, 11:00:18 PM
No, because that would create the VDD value of type REG_SZ which is not correct (it must be REG_MULTI_SZ).

I don't recommend experimenting with this stuff... :)
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 11:14:24 PM
OK, When I need, I will install it with the default folder...

Thanks
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on August 31, 2004, 11:16:01 PM
You don't have to reinstall. Just change (edit) the thing in regedit instead of editing the .reg file and importing it...
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on August 31, 2004, 11:41:42 PM
You don't have to reinstall. Just change (edit) the thing in regedit instead of editing the .reg file and importing it...
I will do that ;)
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on September 01, 2004, 12:02:17 AM
On my old PC, I have installed the avast! Home Edition on WinXP Pro SP2, and see that the registry already have the:

"VDD"="C:\Program Files\avast!\aswMonVd.dll"

Is this normal?
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on September 01, 2004, 08:56:39 AM
Why are you asking? Of course it's normal. As I said, by far not all SP2 users are affected by this strange behavior...
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on September 01, 2004, 01:29:15 PM
Why are you asking? Of course it's normal. As I said, by far not all SP2 users are affected by this strange behavior...
I didn't saw that...  :)
Title: Re:With SP2 Avast unables setup of older software
Post by: rdsu on September 02, 2004, 03:04:54 AM
I instaled the avast! Home Edition to my friend, and now he doesn't have that problem  ;)

Thanks
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 02:09:20 PM
The only places I have encountered this problem is when installing applications using older versions of Installshield.  This includes recent updates to some of my programs, but since applications don't seem to use old versions of this installer, it probably only affects a few people with apps using these installers.
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:24:37 PM
Hopefully this will help someone who hasn't installed Avast in the default location.  I have attached a registry files that will fix the problems for the following location you might have installed Avast :-

c:\program files\Alwil Software\Avast4\

Change the file extension from .txt to .reg before double-clicking the file.

I suggest checking it looks OK in a text editor and of course use at your own risk. If it doesn't work, you can always edit the registry manually as suggested above.

I will post for other locations below (don't think I can attach more than one file).


Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:26:59 PM
If you have installed Avast in
d:\program files\Alwil Software\Avast4\

... use this one (attached).

Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:27:22 PM
If you have installed Avast in
e:\program files\Alwil Software\Avast4\

... use this one (attached).

Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:27:41 PM
If you have installed Avast in
f:\program files\Alwil Software\Avast4\

... use this one (attached).

Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on September 07, 2004, 08:28:53 PM
And which one to use if I have Avast installed in:

x:\IamnotgonnatellwhereIinstalled it?

Just kidding ;D ;D ;D

Nice job, I think you helped a lot of people.
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:30:14 PM
If you have installed Avast in
g:\program files\Alwil Software\Avast4\

... use this one (attached).

Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:31:50 PM
If you have installed Avast in
c:\program files\Avast4\

... use this one (attached).

Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:32:17 PM
If you have installed Avast in
d:\program files\Avast4\

... use this one (attached).
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:32:54 PM
If you have installed Avast in
e:\program files\Avast4\

... use this one (attached).
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:33:36 PM
If you have installed Avast in
f:\program files\Avast4\

... use this one (attached).
Title: Re:With SP2 Avast unables setup of older software
Post by: apwood on September 07, 2004, 08:34:00 PM
If you have installed Avast in
g:\program files\Avast4\

... use this one (attached).

Just wanted to say sorry in advance if I've broken any forum etiquette by making these 10 posts, but I couldn't see any other way to do it.  Do hope it helps though.

Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on September 08, 2004, 01:17:27 AM
apwood
Welcome to the Forums.
I'm sure this will help some of the users. Since each post has a file attached, I don't think there is any other way then making individual posts. Thanks
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on September 08, 2004, 03:01:00 AM
Maybe this could bring some light for the problem:

Programs that are known to experience a loss of functionality when they run on a Windows XP Service Pack 2-based computer (http://support.microsoft.com/default.aspx?scid=kb;en-us;884130)

Some programs seem to stop working after you install Windows XP Service Pack 2 (http://support.microsoft.com/default.aspx?scid=kb;en-us;842242)
Title: Re:With SP2 Avast unables setup of older software
Post by: Tianshi on September 08, 2004, 10:10:11 AM
I have installed Avast in
D:\Programme\Alwil Software\Avast4

Help me  :-* :-*
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on September 08, 2004, 10:16:52 AM
Use any of the reg files (import it to the registry), then fire regedit, navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\VirtualDeviceDrivers, and manually change the path in the VDD value.

Vlk
Title: Re:With SP2 Avast unables setup of older software
Post by: Tianshi on September 08, 2004, 10:22:58 AM
@Vlk :-* :-*   it works

Title: Re:With SP2 Avast unables setup of older software
Post by: Xenomorph on September 17, 2004, 04:41:57 AM
i had been wondering why the hell none of my DOS stuff had been running the past few days/weeks.

this thread helped me a lot.. thanks.
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on September 17, 2004, 01:58:37 PM
I had been wondering why the hell none of my DOS stuff had been running the past few days/weeks.

Did you install Norton before avast?
Which application 'mess' the VDD registry key?  ::)
Wellcome to avast forums.
Title: Re:With SP2 Avast unables setup of older software
Post by: Xenomorph on September 17, 2004, 04:44:15 PM
Did you install Norton before avast?
Which application 'mess' the VDD registry key?  ::)
Wellcome to avast forums.

No.

this was a CLEAN install of Windows XP SP2 (no previous version installed, not an upgrade, etc), followed by an install of avast!. DOS programs immediatly stopped working. Nothing else was installed on the system.

its obviously an issue of avast! and SP2.

like i said, it was a fresh install of Windows XP SP2. i hadnt even installed my video drivers yet. i made sure my firewall was up, and went and installed avast!. after a reboot, "edit.com" no longer ran, and i noticed the missing registry key.
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on September 17, 2004, 04:51:52 PM
Thanks Xenomorph for your information.
Like previous discovered, seems that avast! is not 'fully' integrated with SP2 in this specific point...  :-\
I just asked because it's well known that NAV brings the same problem to any other antivirus installed after. Even uninstalling NAV the problem remains  :( You should, like you did in this case, manually change the VDD Registry key.

I just alert to the fact of editing the config.nt file, like some users did, will un-protect 16-bits (DOS) applications of being scanned by avast  :'(
Title: Re:With SP2 Avast unables setup of older software
Post by: Cbruyland on October 04, 2004, 09:57:51 AM
I had the same problem when I tried installing Visual Studio 6.0 on Windows XP SP-2.
The setup hangs and after some time the error: "couldn't find acme setup" was displayed.

Removing the driver in the config.nt file solved the problem;
now I will try using the VDD reg file...
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 23, 2004, 03:07:49 AM
I can't believe it!  I have been searching for over a month. I never suspected avast because I was getting the NTVDM error even in Safe Mode, when avast is not running.

Anyway, I added aswMonVd.dll (with the proper path) in the registry and I don't get the NTVDM error anymore, but the affected programs simply don't start. I also tried with avast disabled: same result.

Can anyone help?
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on November 23, 2004, 03:28:06 AM
I can't believe it!  I have been searching for over a month. I never suspected avast because I was getting the NTVDM error even in Safe Mode, when avast is not running.

Anyway, I added aswMonVd.dll (with the proper path) in the registry and I don't get the NTVDM error anymore, but the affected programs simply don't start. I also tried with avast disabled: same result.

Can anyone help?

Do you have any other antivirus installed in your system? Which one?
NAV could mess your registry keys and let you to error.

aswMonVd.dll should appear in the following Registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet004\Control\VirtualDeviceDrivers\\VDD

Maybe you don't have all ControlSet00X... Don't worry.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 03:56:24 AM
Mr_Blue
Please realize that this is an old thread. The problem discussed in here no longer has anything to do with avast! providing your using version 4.5 or higher.
However, If you had Norton on your system and it wasn't properly un-installed using the software available from Norton,(click on the link in my signature) then the problem is Norton AV related.
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 23, 2004, 01:23:53 PM
Yes, I know that this is an old thread. I read all messages in all threads that contain "NTVDM" and this is the one that seemed most appropriate. I have avast 4.1 Pro.

No, I don't have any other antivirus and never did. This machine is less than 2 months old. NTVDM was working before, including after installing SP2. The error started immediately after installing avast. (I know it now because this is the second time that I install everything, so I was testing the NTVDM at every step.)

I have another machine (one year old) also running WinXP, on which I have NAV instead of avast and there is problem with NTVDM on that one. But I was planning on buying avast Pro for this machine.

I modified the VDD value in the ...CurrentControlSet... only, because that is how it is specified in your .reg file, and the value was changed automatically in the other ControlSetnnn keys, as expected. I have only ControlSet001 and ControlSet003. The VDD value is still correct in all three keys after a reboot.

As I said before, after modifying the VDD value, I no longer get the error message about NTVDM having "encountered an illegal operation". When I launch a program that requires NTVDM, the avast icon activates, but nothing else happens. There is no message from avast, even though I turned on the option to "Display detailed info on current action" [translating from French] in every module that has this option.

I hope I won't have to uninstall avast. I had already started recommending it to friends and colleagues.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 04:42:13 PM
Mr_Blue
Quote
Yes, I know that this is an old thread. I read all messages in all threads that contain "NTVDM" and this is the one that seemed most appropriate. I have avast 4.1 Pro.
Your problem is one of the problems solved in the current release of avast!.
Please update your avast! software and your problem should be gone.
Hope that helps.
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 23, 2004, 05:46:08 PM
Upgrading to v4.5 has not changed anything in relation to NTVDM.

Still no error message, but nothing happens when launching programs that use it, except a few spins of the avast icon.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 06:10:25 PM
Is this one program or all 16 bit programs? and if it's one, that which program is it?
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on November 23, 2004, 06:15:08 PM
There is ofcourse the config.nt option. Put a rem in front of the Avast driver. This is not a fix, but a workaround and it will prevent Avast from scanning 16 bits applications.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 06:18:16 PM
Eddy
Wasn't this issue addressed in the 4.5 upgrade? Or, is Vlk's reg fix still needed?
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on November 23, 2004, 06:21:27 PM
It was indeed solved in 4.5 and the config.nt trick shouldn't be needed anymore.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 06:28:09 PM
Eddy
One more question----- If it was applied before the fix, does anything have to be done so that the new version will work properly or, isn't that needed either?
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on November 23, 2004, 06:30:49 PM
Yes, remove the REM in front of the Avast driver if Avast hasn't done so automaticly.
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 23, 2004, 08:21:26 PM
In my case, I had never commented out anything in config.nt.

As I wrote before, the error message stating that NTVDM has "encountered an illegal operation" occurs even in Safe Mode, when avast is not running. But this started only after installing avast, so there is no question that avast is involved, if only its installation. Everything that needs NTVDM is affected. So the answer is: No, it's not just one 16 bit program that is blocked.

Setting the VDD in the registry to contain aswMonVd.dll prevents the error message from being displayed. That is all. It might be getting me one small step further, but I can't tell.

So... Even if v4.5 has solved a problem related to the blocking of scripts, or whatever, I'm still stuck with two installations of WinXP on which I cannot install all the applications I want.

I'm not really trying to run 16 bit programs. I'm just trying to install programs, and not just old ones.

For example, Yahoo! Messenger is not old at all. But, as other people have noted a few months ago in other threads, any application that uses InstallShield (or certain versions of InstallShield) need NTVDM because there is some 16 bit component to it. And I can't decide which InstallShield an off-the-shelf application uses.

I hope that someone reading this will be kind enough to point me in the right direction to make NTVDM work again.
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on November 23, 2004, 08:31:27 PM
Have you tried as I suggested?
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 23, 2004, 09:08:55 PM
Have I tried as you suggested? Well, unless I missed something, you suggested removing the REM in front of the aswmonds.sys device in config.nt.

As I wrote before, I had never comment out that line, so there was no REM to remove.

In case you meant the opposite, I added the REM and rebooted, but it doesn't change anything. Which is not surprising if its function is really to scan 16 bit programs because, as I wrote before, the problem exists even when avast is not running, such as when starting Windows in Safe Mode.

I have absolutely no idea where to look next.
Title: Re:With SP2 Avast unables setup of older software
Post by: Eddy on November 23, 2004, 09:13:49 PM
Quote
In case you meant the opposite, I added the REM and rebooted, but it doesn't change anything. Which is not surprising if its function is really to scan 16 bit programs because, as I wrote before, the problem exists even when avast is not running, such as when starting Windows in Safe Mode.

Looks like is time to repair Windows. It sure looks to me that Windows is corrupted.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 23, 2004, 10:52:28 PM
Mr_Blue
Quote
as I wrote before, the problem exists even when avast is not running, such as when starting Windows in Safe Mode.
The fix we talked about strictly had to do with 16 bit programs. Since that's not really your problem, and since you've even tried it with avast! not running, I think Eddy is probably right. (He usually is! ;D)
Title: Re:With SP2 Avast unables setup of older software
Post by: Mr_Blue on November 24, 2004, 11:21:40 PM
The "fix" may have been strictly for 16 bit programs, but as I said before, InstallShield has a 16 bit component. Therefore, many programs, including recent 32-bit ones, cannot be installed if NTVDM doesn't work.

Anyway... I fixed it by copying a bunch of files in the System and System32 directories from another, clean installation of WinXP, as suggested in the MS KB article 220155.

The fact remains that the installation of avast had caused the corruption. It happened to me three times in a row, following reinstallations of WinXP and SP2.
Title: Re:With SP2 Avast unables setup of older software
Post by: bob3160 on November 25, 2004, 05:45:30 AM
Mr_Blue
If the fault belongs to the avast! installation, then why didn't it do it to me? I have the same operating system as you. It sounds more like your operating system had a problem with or without avast.
 
Title: Re:With SP2 Avast unables setup of older software
Post by: Lisandro on November 25, 2004, 12:39:19 PM
The fact remains that the installation of avast had caused the corruption. It happened to me three times in a row, following reinstallations of WinXP and SP2.

It's strange as I use 16bits applications and do not have any problems with avast and Windows XP SP2.

Can you post the contents of these Windows Registry keys in your system?

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Control\VirtualDeviceDrivers\\VDD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet004\Control\VirtualDeviceDrivers\\VDD

Did you have any other antivirus program installed in your system before?
Title: Re:With SP2 Avast unables setup of older software
Post by: Vlk on November 25, 2004, 10:06:29 PM
Are you using avast 4.1 or 4.5?

Avast 4.1 installer did indeed have some sort of problems related to the NTVDM subsystem on XP SP2 but the 4.5 version should fix this.

Thanks
Vlk