<upd:Update xmlns:pub="http://schemas.microsoft.com/msus/2002/12/Publishing" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" xmlns:lar="http://schemas.microsoft.com/msus/2002/12/LogicalApplicabilityRules" xmlns:cat="http://schemas.microsoft.com/msus/2002/12/UpdateHandlers/Category" xmlns:upd="http://schemas.microsoft.com/msus/2002/12/Update"><upd:UpdateIdentity UpdateID="352F9494-D516-4B40-A21A-CD2416098982" RevisionNumber="53" /><upd:Properties DefaultPropertiesLanguage="en" UpdateType="Category" ExplicitlyDeployable="false" IsPublic="false" Handler="http://schemas.microsoft.com/msus/2002/12/UpdateHandlers/Category" PublicationState="Published" CreationDate="2013-04-18T21:39:59.827Z" PublisherID="42f20e12-2856-447d-a8b2-68f06c2e9b45"></upd:Properties><upd:LocalizedPropertiesCollection><upd:LocalizedProperties><upd:Language>en</upd:Language><upd:Title>Exchange</upd:Title><upd:Description>Exchange</upd:Description></upd:LocalizedProperties></upd:LocalizedPropertiesCollection><upd:Relationships><upd:Prerequisites><upd:AtLeastOne IsCategory="true"><upd:UpdateIdentity UpdateID="56309036-4c77-4dd9-951a-99ee9c246a94" /></upd:AtLeastOne></upd:Prerequisites></upd:Relationships><upd:ApplicabilityRules><upd:IsInstalled><lar:Or xmlns:lar="http://schemas.microsoft.com/msus/2002/12/LogicalApplicabilityRules"><bar:RegKeyExists Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\Exchange\Setup" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" /><bar:RegKeyExists Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\ADCSetup" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" /><bar:RegKeyExists Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\Exchange Conferencing" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" /><bar:RegKeyExists Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\ExchangeServer\v14\setup" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" /><bar:RegKeyExists Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\ExchangeServer\v15\setup" xmlns:bar="http://schemas.microsoft.com/msus/2002/12/BaseApplicabilityRules" /></lar:Or></upd:IsInstalled></upd:ApplicabilityRules><upd:HandlerSpecificData xsi:type="cat:Category" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><cat:CategoryInformation CategoryType="ProductFamily" ProhibitsUpdates="true" xmlns:cat="http://schemas.microsoft.com/msus/2002/12/UpdateHandlers/Category" /></upd:HandlerSpecificData></upd:Update>