metaprof'
if you download the installer after 16h30
(amsterdam time) you should not have any problems.
the key:
HKEY_CURRENT_USERSoftwareMicrosoftWindows
CurrentVersionExplorerPINF
is a proof that you are infected.
but not having the key, does not mean that you do not have W32/Pate.b on your HDD.
only a full Scan inluded the PE and UPX can tell you if you are or not infected.
you can download for free the Stinger tool from McAfee:
http://www.mcafee.com > entreprises > security HQ
> tools > Utilities > Stinger v2.3.9
Stinger is small. does not need an installation.
GOOD advice:
1. configure stinger to not clean the virus but just inform you about it.
This will inform you about the gravity of your issue.
2. make a list of the possible file to restore.
3. second scan with a clean option.
But I will be very surprise, that you've get infected if you had download the file after 16h30.
Bart and Edwin did a great job to have this issue solve very quickly.
For info: There is NO MORE virus on the installer available for download at this time.