Getting Assert after Exit Indesign

Hi All,<br />I have an application in which i am writting and reading data to/from document.<br /><br />But when i exit indesign i get many asserts like.....<br /><br />b fTotalActiveLastRevInfoCount bad.<br /><br />b LastRevInfo ID= 3 leaked. Possibly others as well.<br /><br />b ASSERT 'fRefCount == 0' in ..\..\..\source\components\appframework\commandmgmt\LastRevInfoCache.cpp at line 204 failed.<br /><br />b Erased LastRevInfo list not empty at block delete time<br /><br />b blockUID = 2 not freed <br /><br />in may application i am querying for layout control data and socument layer<br />and i am releasing them at the end.<br /><br />and one more thing i am using <br /><br />InterfacePtr<IHierarchy> child(hierarchy->QueryChild(childIndex));<br /><br />b should i need to release "child" also????????<br /><br />and what is LastRevInfoCache.cpp????<br /><br />i am not getting why i am getting these asserts.<br /><br />thanks