I haven't had any luck finding out all the switches for explorer. I know these put you in the root drive.
What does the /e do. I have seen a /n as well but don't know what it does either.
%windir%\explorer.exe /e,c:
I googled for "explorer.exe commandline".
Read it for yourself:
http://support.microsoft.com/default.aspx?kbid=314853
Regards, P1 :8)