How long ago did you download it. I just looked at it and this was at the bottom:
Requires Windows XP or Windows 2000 SP 3+
Automatically starts when you turn on your computer
Compressed index efficiently uses disk space
Only 1.3MB download
So i would guess that it is not compatable with 98.
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Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher