public void SetProperty <T>(PROPERTYKEY property, T value)
{
var item = GetItem();
try{
var propvar = Propsys.VariantToPropVariant(value);
var properties = Propsys.PSCreatePropertyChangeArray <IPropertyChangeArray>(new[] { Shell32.PKEY_FileAttributes }, new[] { Propsys.PKA_FLAGS.PKA_SET }, new[] { propvar });
var op = Shell32.CreateFileOperation();
op.SetOwnerWindow(fs.OwnerHwnd);
op.SetOperationFlags(0x0400 | 0x0004 | 0x0200 | 0x00100000);
op.SetProperties(properties);
op.ApplyPropertiesToItem(item);
op.PerformOperations();
}finally{
Marshal.FinalReleaseComObject(item);
}
}