can t install oracle

I Can't install Oracle Data Base The installer failed, i was trying to install oracle 8.1.7 Personal Edition, works in XP, but on Windows Vista failed when the installer starts the database creation.
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Here's some things you can try:
- Right-click on the install EXE, and click Run As Administrator.
or
- Right-click on the install EXE - Click Properties - Click the Compatibility tab - Click "Run this program in compatibility mode for:" - Click OK
Good luck :)
- JB