After installing Magento SUPEE6788 patches my module stop working so as per the instruction provided by magento in http://magento.com/security/patches/supee-6788-technical-details and change config.xml
<admin>
<routers>
<adminhtml>
<args>
<modules>
<Module_Name after="Mage_Adminhtml">ModuleName_Adminhtml</Module_Name>
</modules>
</args>
</adminhtml>
</routers>
</admin>
it is working with it but I want to make it compatible with magento 1.9.1 and lower how to perform it can anyone had any idea to perform it