windows 98 issues

This is because there is a conflict with some start-up files being held in the temp folder. These files do not get removed by temp cleaners and othr applications.

Manually empty the Temp folder this way:
Reboot.
Click Start>Run, type %temp% and click OK.
Press Ctrl+A to select all, then press Delet

Delete the Temporary Internet Files:
Click Start> Settings> Control Panel> Internet Options> General tab.
Click the Delete Files button, then put a checkmark in the box to Delete all
offline content, and click OK, and OK.

Close all open windows and running apps.
Disable your anti-virus and screensaver.
Press Ctrl+Alt+Delete, and End Task on everything except Explorer and Systray.

Reboot and try installing the program again!