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No Device Listed - Pxhelp20.sys Filter Not In Registry


Aurisanu
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Salutations Everyone..

 

I am on Vista SP1 and had the same problem so many others had with the DVDs vanishing after an update fromn MS one day.. I finally found the correct registry key, then followed instructions to delete the offending filters and restarted... BANG!!! Drives are back.. I uninstalled and then cleaned and then reinstalled all offending products as instructed.. Everything went well save for Roxio... PxHelp20.sys is found in the C:\Windows\System32\Drivers folder and I even tried the PxHelp20.sys updater from the product updates section of this site, but the driver filter will still not register in the key listing I will provide below... Roxio is my favborite tool for creating disks and now I cannot get it to recognise my DVDs... Please... What do I do? I downloaded the new upgrade to 10.1 and the update for the content CD, buuuuut would like somne answers about this first...

 

Registry Key location>>

 

HKEY_LOCAL_MACHINE\SYSTEM\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE1O318}

 

The filters for everything else are there and working properly... just no device listed in Roxio and no PxHelp20.sys located in the filter listings...

 

Any help is greatly appreciated as this is my last obstacle before I can image this entire PC...

 

TIA.

 

Auri.

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1. Del the u/l/filters

2. Follow Clean installation intructions

 

 

I've already tried that... Twice... Had to reinstall the other program as well because of it - of course... I'm up to manual registry editing, just need a bit of info... It doesn't make sense that even after deleting the upper and lower filters from the registry... I mean.. I can try that again... with uninstall of both other tools, but it's been done... Thanks, but what's next?

 

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I've already tried that... Twice... Had to reinstall the other program as well because of it - of courseI'm up to manual registry editing, just need a bit of info... It doesn't make sense that even after deleting the upper and lower filters from the registry... I mean.. I can try that again... with uninstall of both other tools, but it's been done... Thanks, but what's next?

 

What other program????

 

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CloneDVD2.. the ElbyDelay.sys was also in the way back then... I had no problems with the reinstall of this...

 

I certainly hope you don't have CloneDVD running in the background, when you are using the Roxio software, because the Clone software is a problem that was brought up in the forums, before.

 

Do you have other software running in the background?

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I certainly hope you don't have CloneDVD running in the background, when you are using the Roxio software, because the Clone software is a problem that was brought up in the forums, before.

 

Do you have other software running in the background?

 

It would indeed be silly trying to run Roxio and CloneDVD2 at the same time... The program has never caused me any conflict before and was reinstalled after Roxio was done the first time... The problem is that the PxHelp20.sys file is not correctly registered with windows within the registry..... everything else works... There has to be a simple regserv command to correct this since simply inputting the Data PxHelp20 to the filters listing did not work without killing the DVDs again. Frankly.. I suspect that I didn't add it correctly..

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Auri,

 

I don't think that regserv will help you because this is a filter rather than a regular DLL.

 

Here are the values in

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

in my registry where everything is working fine. Note, the key is in a slightly different location from what you've quoted - perhaps you don't hammer your system as much :)

 

post-208-1217470902.jpg

 

Have you tried reinstalling Pxhelp20 by using its INF files?

C:\Windows\inf\pxhelp.inf and pxhelp20.inf. Right-click on each inf file and select 'Install'. That might do it.

 

Regards,

Brendon

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Thank you Brendon... I'd forgotten about *.inf installs... and so it seems has the computer ( The INF File you selected does not support this mode of install )

 

The registy main key looks virtually identical to yours... values and all save for the extra filter listings on lower filters.

Attempted inputting PxHelp20 to the Lower Filters key again with the same result... DVDs vanished...

 

I'm going to go ahead and see if the upgrade to 10.1 fixes it and if not.. run the PX Engine Updater again

 

What's next please...

 

Nameste..

 

Auri

Edited by Aurisanu
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The extra lower filters are from Drag-2-Disc, I think. I have that installed too (in Vista) and it's working well.

 

Though I dunno why the .INF won't install. I'm new to this.

 

Make sure that if you run the PX engine updater, you run the latest one . http://kb.roxio.com/content//kb/General%20...mation/000070GN

 

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We'd like to have known too, but the only info we have on 10.1 is what we've painstakingly unearthed by ourselves.

 

Glad you're fixed Auri.

Brendon

 

p.s.

 

Oh, I forgot to mention, in case you were worrying. I have Drag-to-Disc running on my Vista EMC10, and I think the extra lower filters listings come from D2D.

 

Brendon

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