merging menus and getting implemented interfaces

[sbit72]

Hi
i've recently moved to framework 2.0 and i need to port a 1.1 application to 2.0 and also write code compatible with compact framework.
Actually i've found a strange behaviuor about a couple of things.
The first is retrieving implemented interfaces and classes from an external assembly:
//get types inside the assembly
foreach(Type piType in pluginAssembly.GetTypes())
{
//search interfaces
foreach (Type ift in piType.GetInterfaces())
{
//is the one i'm interested?
//not working anymore: gets null result
//if (ift == Type.GetType("IUiOptmod"))
// {
//...
// }
//this works instead
if (ift == typeof(IUiOptmod))
{
Am i missing something? what's changed form 1.1 to 2.0?

The other problem is related to menu merging, since compact framework doesn't support mergemenu() i replaced it with e loop on the new menu menuitem collection:
//replaces rootMnu.MergeMenu(newRoot)
//option1:
//foreach (MenuItem it in newRoot.MenuItems)
//option2:
for (int ii = 0; ii < newRoot.MenuItems.Count;ii++ )
{
MenuItem temp = newRoot.MenuItems[ii];
//rootMnu.MenuItems.Add(it);option1
rootMnu.MenuItems.Add(temp);//option2
}
the weird thing is that when i add the menu to rootMnu, it gets removed from newRoot collection. Is that a known menuitem peculiarity i wasn't aware or there's something wrong in my code? obviously the count get changed and i've got wrong behaviour in best cases.
Thank in advance for any answer
sbit72