Short of DS coming back, the dispute cannot be resolved.
Unless someone wants to personally go to Miaw Miaw city to "invite" him.

Sorry. My mistake.

Off topic: I am not refering to you btw. Just confused a bit on the location.

Heh. I remember seeing Miaw City somewhere in relation to DS.
So, this is what I see.

Rest assure I didn't confuse Reuben with DS.

Use sysinternals Autorun to check thru the startup items.

This will list down all dlls loaded and all process started at Windows startup. It will even filter out signed Microsoft entries so you can concentrate on the rest to see if there's anything out of place.

http://www.microsoft.com/technet/sysinternals/default.mspx

If someone really have some free time and did not like the idea of reformatting.
You can download RegMon and FileMon. Start the apps 1st before running the IdealVPN installer.

This way, you will know which file and which registry entry are added.

All these applications are part of the Sysinternal tools mentioned previously.

Combine this with all the suspicious entries disabled from Autorun, you should be clean.

EDIT:
Actually it seems like Process Monitor have the functionalities of both RegMon and FileMon. Personally, I haven't used Process Monitor before so no comments on that.

This post has been edited by precursor80: Aug 16 2007, 06:28 PM

Process monitor can let you know what registry entries does the IdealVPN installer add. It can monitoring the installer (when it is running as a process) and log what it is doing to your system. After this, you can remove all traces of it from the system by removing everything shown. (Assuming the installer is not a virus itself which is unlikely anyways)
Another way is to unpack the installer and see what scripts it is running. There are some applications that can do that but this depends on the type of installer as well. Not all installers are supported.

Autorun will show all the windows startup items with an option to filter Microsoft signed entries. So, if DS added any trojans, it should show up here unless he's really good and manages to modify the windows files to include a trojan. You can choose to disable entries that doesn't looks ok here.

I would do this but I rather try this on a VM and am too lazy to set it up.