Unable to execute windows 98 OS

I have developing one VB.Net Project with Windows 2000 Professional OS. Only it is working windows 2000 and XP, it is not working in windows 98 OS even i installed .Net Framework 1.1. If anybody know above probs plz help me to execute what i develed. Note: the attached zip file contain error messge, of when running windows 98 OS.

Loader.
Up arrow icon