PSAPI.DLL not found

[mindjob]

I'm running a Dell Latitude D830 with XP pro and lately I've been getting the following error message on start up:

"The procedure entry point GetProcessImageFileNameW could not be located in the dynamic link library PSAPI.DLL"

When this happens, the mouse can be moved around the screen, but when I double click on anything, it will not open. I wonder if my Norton antivirus deleted a file.

I haven't done anything different to the laptop, so I don't know why I'm getting this error message. I know anything that has to do with a DLL file is serious, so I need your expertise.

Thanks,
Greg

[unionflag]

You have (slightly) misintepreted the error message, for which you can be forgiven since Microsoft error messages are often in an alien language to all but PC geeks.

The file is not missing, it's misbehaving, probably because there is more than one version of it on your PC when there should only be one. The 'extra' ones will have been installed with an application and they are probably older than the 'proper' one which Windows Setup installs in the C:\Windows\System32 folder.

Unfortunately for you, one of the older versions is being referenced during startup instead of the newest one installed by Windows setup. the usual solution is to rename them all except the one which is in the C:\Windows\System32 folder.

Please follow this procedure:
http://www.mydigitallife.info/2007/0...-library-file/

[mindjob]

Thank you for the help. I followed the instructions and now the psapi.dll error doesn't appear. I found 6 additional copies of psapi.dll in the SBC folder. I use the SBC dsl service.

After I did this, I rebooted and I got 2 new error messages, one for ogezubohidozo.dll and one for wququsasiy.dll not being found.

Also, after I rebooted, norton anti-virus came and did some clean up but didn't quaranteen any files. Also the google toolbar opened up and wanted to install something. Fearing this was a problem, I uninstalled the google toolbar.

Despite the error messages, everything works, except Disk Defragmenter won't run. Should I do a search for extra ogezubohidozo.dll and wququsasiy.dll files and rename those as I did for the psapi.dll files? Should I install a registry clean up program?

Thanks,
Greg