I'm having this problem, too along with another one, and they seem to be from the same source. I've had this problem before after doing a new installation, then I couldn't figure it out and thought that it was my fault, and went ahead and did a new install.
After the new installation everything was back to normal. About two days later I started getting the same errors. I'm getting it with sndvol32.exe, and with mpnex20.exe. This just came out of nowhere, when I try to open volume control the error pops up, and
when I try to use my scanner (Canon) as well.
I did a memtest scan and no problems came up with my ram. I reinstalled the scanner drivers, and the problem is still there. I'm not sure what is associated with helping to run these applications, but these problems just randomnly came up while regularly using
the pc.
So this is the second time now, after the new install. I did a new installation to begin with because my last install was a year old. I didn't have these problems at all, all that time until after the new install.
I'm not sure, but could it have anything to do with .net framework? I'm using Windows XP Home Edition with Service Pack 3.