Win Xp Error "Not enough quota is available to process this command"

I have run Win XP Home for several months without a problem. Now, the computer runs fine right after boot, but if you use an application like IE 6.0 for 15-20 minutes, it quits functioning. If you try to launch a program such as Outlook after this time, you may get an error message "Not enough quota is available to process this command". Sometimes you click a taskbar button and nothing happens, no error message, etc. A reboot cures the problem temporarily and then the same problems start again.

I searched this problem on the 'net and found an article suggesting to increase the Virtual Memory paging file size. I increased it from 767 to 1567 (max was already set at 1568) and this immediately made the computer function normally - HOWEVER, after 20 min or so of use, the same problems as above started again! There also was an option to "Let System manage" VM and I tried that, but it didn't help.

I also did all of the above with a diagnostic startup and disabled all the extraneous startup programs I could, but this didn't help.

Your PC will use space on the hard drive to store data that won't fit in RAM. But if you run out of space on the hard drive, you can't store that data anywhere and you get errors. That sounds like it might be your problem. If you want to let windows manage your virtual memory, you should clean up anything unnecessary on your HD and defrag it so it can respond with haste.

How much RAM does your system have?

If this really is 1.5 Gig of space, it could be some other problem, too, unless you're working with video, uncompressed audio, or huge pictures, you shouldn't need that much RAM.
Maybe the temporary internet file folder is set ridiculously high and taking space away from the swap file.

I've got a 20 Gig HD and it is only about 50% full. I have 512K RAM, and don't deal with any ridiculously large files, such as pictures, etc. I cleaned out the IE history, cookies, & temp files and it doesn't help. Just went through an extensive session with MS tech support and they left it "unresolved". Tech suggested possible defective RAM, overheated CPU, etc. Seems to run fine with a clean boot, so I am convinced it is a software issue. Guess it is going to be trial and error til I find the guilty party!

Still open to ideas, however!

Have you checked Event Viewer to see if there are any entries that might coincide with the timing of when IE6 ceases to function?

Yes,

The MS Tech support-person and I checked that and didn't seem to find a correlationl

I was convinced this was a software problem and apparently it was. I tried pulling sticks of RAM, leaving the case open for cooling, etc., and nothing helped. Finally, by trial and error, I found that the "Dell Control Utility" that was installed with my "Dell Truemobile Wireless Networking" software was at fault. When it was deleted, everything was back to normal. Curiously enough, the wireless network continues to work fine. (The affected computer was a desktop connected to the WAP by a Ethernet card/cable.)

Whew!