Hello,
I have installed the "virtualdbgrid_package.lpk" and it works fine, but I suspect one problem that consists in the fact that in designtime, When I close ( Active=false) my Query, the columns in the Grid desapears and all my work on columns ( Caption texts ans size of column ) lost. this is not the default comportement I think.
With lazarus DBGrid works fine.
In the LFM file it does not save the configuration of columns.