What carbonize and Void said.

Nirsoft's utils are not malware and will not damage your system. However, because they usually poke around in your system looking for info, they use methods that malware often uses, and which causes antivirus programs to identify them as malware.

Antivirus programs have a tendency to quarantine or delete Produkey, HeapMemView, and a few of Nir's password recovery tools as well. 90% of Nirsoft utils will pass inspection just fine. Nirsoft is NOT malware by design, and so long as you keep your firewall, user accounts and security updates reasonably current, you'll do just fine. I suppose, in the wrong hands, some of the tools might be mildly threatening to low-security systems. Chances are, though, if a skilled cracker set out to compromise your system, they'd likely use something stronger than Nir's utilities to do it.

Should say beware, Jackling is an idiot. A lot of Nirsoft's program use hooks to retrieve information from Windows and although these hooks are officially documented by Microsoft a lot of anti virus programs still report this behaviour as malicious.

BEWARE **** Most Nirsoft utilities are spyware even though the author claims it isn't. Check them with virustotal.com.

Nico tool but SIW (the ever hand systemtool) discovered more licenses.

lol @ screenshot. are those valid?

When ran by double clicking on the .exe it works as it should, but when ran from bat file with the commands:
@start produkey /nosavereg, it runs but no keys show up. This happens when ran from HD or USB drive.

I cannot save the exe to my usb stick. I can save the .txt and the .chm but not the .exe. All of these files can be extracted to my hard drive though. When I try to copy the .exe file for ProductKey to my usb stick it appears to copy but then nothing is there. Any suggestions?

@webfork- you don't have to do step 1, and for step2 you might want to put this in the bat file instead so the cmd window doesn't remain open in windows xp.

@start produkey /nosavereg