Unable to run mysql service on windows98se

I am trying to set the username and password after installing mysql 5,
I run
an ms dos prompt, and type in mysqld but am met with an error msg:

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqld~2
061026 10:09:20 [ERROR] Can't find messagefile 'C:\Program
Files\MySQL\MySQL
Ser
ver 5.0\share\english\errmsg.sys'
061026 10:09:20 [ERROR] Aborting

I checked the above folder and there is an errmsg.sys file, does anyone
know
what could be wrong?