C# implicitly convertion??

My Error is " Cannot implicitly convert type 'object'
to'CIODMLib.CatAdmClass' "
The code segment is as follows;
public class Indexing
{
protected CIODMLib.AdminIndexServerClass admNew;
protected CIODMLib.CatAdmClass catNew;

public Indexing()
{
admNew = new CIODMLib.AdminIndexServerClass();
catNew = new CIODMLib.CatAdmClass();
}
public object InitializeCatalog(string strName, string strLoc)
{
admNew.AddCatalog(strName, strLoc);
return admNew.GetCatalog();
}
public void AddNewScope(string strName)
{
catNew = admNew.GetCatalogByName(strName);
}
}
public class IndexingAp
{
public static void Main(String[] args)
{
Indexing newAdm = new Indexing();
Indexing newCat = new Indexing();

newAdm.InitializeCatalog("myCat","C:\\myCatalogFolder");
newCat.AddNewScope("myCat");
}
}

I even tried
"catNew = (CIODMLib.CatAdmClass)admNew.GetCatalogByName(strName);"
Then error "'System.InvalidCastException' occurred Specified cast is not
valid." occurs
Can some one please help me???



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