DST issues/tzmove.exe

Simple enough thing.....attempting to install the tzmove.exe patch to correct all Outlook appointments that are now off by one hour.

"The Package failed to install".

Hmmm....
Local admin - check
Firewall off - check
Had user log onto another PC, built new profile, was able to install on *that* PC, but only one appointment was corrected.

Not sure what the dealio is.

Did you have Outlook 2003/2007 installed and was it setup to be your default email?

That's correct