Oracle Database Discussions

Hello All,

I installed Oracle 10g successfully on windows vista operating system and could able to access SQL plus and database at the time of installation. But after that before shutting down my system i made only oracle service startup type as manual instead of automatica and when i reboot the system though i could able to restart the oracle service but could not able to acess the sqlplus window after entering all the user,password,servicename credentials to connect database, SQL Plus window automatically shuts down or terminates, vexed with this even when i try to uninstall the 10g database from the installation directory also from the program files through Oracle uninstaller i am getting the below error message, appreciate if you could help me through this, Thanks a lot.

Error Message:-

Abnormal Program Termination. An internal error has occured please provide the following files to oracle
"Unknown"
"Unknown"
"Unknown"

Regards,
Sam.