SecureDNS option with CD only eats up 900MB memory?

I mean… wth ???

Symptoms: I wrote about a small installer issue (check boxes), then closed CD and run the new installer. I’ve selected use Secure DNS with CD, only. Then the installer hanged at an Execute command (i saw first run and secure dns parameters).
Specific steps you have taken to try to resolve it: i’ve killed off dragon by the task manager (when it was possible)
Comodo Dragon Version (Stable/Beta): 12.2
Plugins/Themes installed in Comodo Dragon: N/A
Windows version (w/ 32 or 64-bit): Windows Vista Ultimate (64-bit)
UAC status: disabled
System Drive where Windows is installed: C:
Place: default.
User privileges: user with admin rights.

2 screenshots attached (you can see where i had the problem and how many memory CD had used before i forced kicked it to outer space ;)). Note that it looks like CD is working normally now.

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I’ve done the steps on Win7 64bit Hungarian as well, but ain’t got such problems. Everything ok. Vista only?