i think multipoolminer use to much memory and probably have memory leak
after a couple of day computer is out of memory and powershell is using it all
You can't get memory leaks in managed environments like '.net' (i.e. C# and PowerShell).
I've never noticed any problem with it using too much memory but I have 16GB.
How much is it actually using?
Well I've had it up to around 24GB of usage, so I'd say you're wrong on that, unless it's supposed to climb that high, heh.