can anyone tell me what these errors are and how to get rid of them

The referenced component 'AxEnhancedGrid' could not be found. Could not load the type library. Library not registered.
The referenced component 'EnhancedGrid' could not be found. Could not load the type library. Library not registered.
C:\Source Safe\SalesFigures\frmSalesImport.vb(35): Type 'EnhanceGrid' is not defined.

Cheers

Jamie