Programs crash with error message (0x7c905f9c)

Question

Hi there, I have a wonderful DELL Dimension XPS600 PC running WindowsXP Pro SP2 and come across the same error again and again: after having started (and closed) many different applications there comes a time I can not launch any application without an error message saying (this is translated from German, so the original English message might be somewhat different): '[name of application].exe - Error in Application. The instruction '0x7c905f9c' refers to memory in '0x7c905f9c'. The action 'written' could not be performed to this memory. As long as I do not acknowledge this message the application seems to continue working. After clicking OK it is being terminated. The only chance getting my PC to work correctly again is to reboot. Sometimes it takes hours for this error to come up, sometimes only minutes. There is one method to reproduce this error: (I have set up a system for two users) switching to user 2 without shutting down user 1 and then switching back! No application will launch anymore without the mentioned message. I have read about this problem in one or two support communities. But no one could offer any real help. One more thing. I have set up a second PC almost identically. It just has a different chip set (intel). No problems to be found here. Some infos concerning my system: Motherboard with nVidia nForce4 Chipset (latest BIOS) 2 GByte DDR2 Dualchannel Ram Intel Pentium D Processor with 3,4 GHz Soundblaster x-fi Soundcard (tested without it too) Sound on board deactivated (tested activated too) nForce4 SATA Controller with 2 hard drives nForce4 LAN Controller nVidia Gforce 7900GS 256k graphics (I have tested the latest drivers provided by DELL as well as the latest available drivers provided by nVidia) WindowsXP Pro SP2 with all Updates being launched at system startup: Kaspersky Antivirus 6 Microsoft Activesync VirtualCD 8 Fritz!DSL Logitech Setpoint mouse-&Keyboardsoftware Logitech Quickcam Webcamsoftware Steganos Safe 2007 Acronis Trueimage Fineprint printerdriver Memory- and hardware testing using different testing software did show no hardware defects. Anyone having the same problems? Any idea how to solve it? What actually does this error message mean? Regards, Andreas

maddy78 · Answer

Hi APieroth,

I had written this earlier too.. but did not get to know if the issue got fixed or not. Request you to try this lengthy solution and update me if it worked or not.

This problem generally occurs when the firewall on the system blocks a windows component update or leave an update incomplete. That corrupts the s/w distribution foler and thereby causing the error.

The resolution is a bit lengthy one and success is not guaranteed either. No harm in trying though.

Click Start-> Run, type services.msc and click ok button.
Double click on the Automatic Updates service. Click on the "Log On" tab and make sure the option "Local System account is selected and the option "Allow Service to interact with desktop" is unchecked.
Check if this service has been enabled and the listed hardware profile. If not, please click the Enable button to enable it.
Click on the General tab. Make sure the Startup type is set to "Automatic". Then please click the start button if it is not already started.
Repeat the same above steps for the Background Intelligent Transfer Service(BITS).

Then Click Start -> run, type REGSVR32 WUAPI.DLL and press Enter key.
You should get a success message. Click Ok on it.
Repeat this for the following files as well.
REGSVR32 WUAUENG.DLL
REGSVR32 WUAUENG1.DLL
REGSVR32 ATL.DLL
REGSVR32 WUCLTUI.DLL
REGSVR32 WUPS.DLL
REGSVR32 WUPS2.DLL
REGSVR32 WUWEB.DLL

After this, click Start -> Run and type cmd. Click Ok button.

type net stop WuAuServ
Click Start -> Run and type %windir% and press Enter.

Locate the folder SoftwareDistribution and rename it to SDold.

Click Start -> Run and type cmd and click OK button.
type net start WuAuServ

Reboot the system and verify if you still get the error.

Happy troubleshooting.

Cheers,
Maddy

APieroth · Answer

Hi Maddy,

thank you very much for trying to help me.
Unfortunatly this did not solve the problem :-(

I did everything exactly the way you wrote.

The Automatic Update Service had been set to "Local System Account" with "allow Service to interact with desktop" unchecked.

I had to start the BITS and switch the Startup Type from "manual" to "automatic".

I've registered all the files you said and got a success message after every file.

I've stopped the Automatic Update Service, renamed the SoftwareDistribution Folder, and started the AU-Service again.

After reboot I've switched from user 1 to user 2 an back
and the applications started crashing again :-(

Regards,

Andreas

maddy78 · Answer

Hi APieroth,   Thanks for your update. Apologies that the long try did not work. The next thing that I have heard of it is to edit registry. Run regedit and find the following key :- HKEY_CLASSES_ROOT\SystemFileAssociations\.avi\shellex\PropertyHandler Delete the 'Default' value then close. Restart your computer.   You may also want to try this .   Keep updating.   Cheers, Maddy.

APieroth · Answer

Hi Maddy,

no, sorry, no joy.
Applications keep crashing.
I'm now reinstalling my system step by step to find out, which driver or application injects the problem into my system. I've got the basic setup with all service packs an updates for windows, as well as most of the drivers. No problem so far.

CU,

Andreas

Windows General

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