Is "datadir" still a valid setting in my.ini file?

[mysqltalk]

I'm trying to create a database in another drive (say d: drive) other than the default one. I created the my.ini file in c:/windows with the following lines:

[mysqld]
datadir=e:/mydatabase/

while restarting the mysqld with

net start mysql

I got the following message:

A system error has occurred.
System error 1067 has occurred.
The process terminated unexpectedly.

Does anyone know what it means and any suggestions?
Thanks very much in advance

 

[Guest_imported]

If you gonna move, you have to move mysql/data/mysql directory to new directory/mysql. I had problem with that before and I was playing around and found that you have to have that database in the data directory. Hope you have the same problem as I did.