UltraVNC and Singleclick - Poor man's PC Anywhere

Being a network admin IT support type of guy, I am always interested in tools to make my job a little easier. I have been using UltraVNC for a couple years now. Lot's of people have their own "flavor" of VNC they like. UltraVNC has been on the top of my list for a while now, because of some of the features:

-Highly configurable
-File Transfer
-Chat
-Screen scaling
-Web based remote control

I know other version of VNC have a couple of those features, but the file transfer is really slick in UltraVNC. The most current versions will allow folder transfers, and will even automatically create a ZIP file if you select multiple files and folders, and transfer the zip, then unzip it automagically at the other end.

I recently discovered UltraVNC Single click. This is a very nice support tool. Basically you grab a zip file from the ultra VNC site, customize a text file for your settings, change icons if you want, and even add a logo. Then you zip this stuff back up, and run it through a web interface. The web interface spits out an EXE for you, with your customizations baked right in. The file is small - mine is about 160k. You (the support person) runs your VNC viewer in listen mode, and the end user runs the customized EXE. BOOM! Remote control session! Even works when the end user is behind NAT. Have not played with it using NAT at both ends. I have setup my Viewer to prompt me when someone wants to be controlled, and can control multiple machines at the same time. I highly recommend checking this out. (Windows version only, the one downside to this).