If you are using Windows 7, the LaunchPad may not open. Attempting to run the launcher will get the error:
The procedure entry point GetSystemTimePreciseAsFileTime could not be located in the dynamic link library KERNEL32.dl
Niente, EQ Developer, has posted this work-around until it can be fixed:
Create a file named StartEQ.bat or whatever you like.
Put the following in the file, replace accountName with your account name.
You can also start with just eqgame.exe patchme.cd "C:\Users\Public\Daybreak Game Company\Installed Games\EverQuest" start eqgame.exe patchme /login:accountName
If your EQ install is not in C:\Users\Public\Daybreak Game Company\Installed Games\EverQuest, you'll need to replace that with the correct path as well.
Double click StartEQ.bat and the old login client will start. You can log in without LaunchPad in this way.
UPDATE (from Angeliana, Daybreak Senior Community Manager):
This is now fixed, for people on Windows 7 that are still getting this error, get the latest installer from our website: https://launch.daybreakgames.com/installer/EQ_setup.exe?v=9 and install it over their existing installation folder.