My HTPC complained of low memory, which was quite alarming since it wasn’t doing much at the time. Checking task manager, there was a rundll32.exe using up 300MB of memory. Uh oh, I thought. Using Sysinternal’s ProcessMonitor, I found that this was the running process:
A google search found it was part of the Marvell Yukon gigabit ethernet drivers. My desktop PC also has the same network chipset and indeed, it also had a rundll32.exe, this one only using a miserly 90MB.
I’d recently upgraded the network drivers on both machines to try resolve a LAN issue for which the router ended up being the cause. I was running v10.64.2.3 drivers. Obviously they are broke! I’ve gone back to the older drivers I’d been running (188.8.131.52) and the resource guzzling rundll32.exe is gone.
Guess the fact that the newer driver depends on a persistent rundll32 (HACK) should give away how sloppy the newer drivers are.