Set-SPEnterpriseSearchFileFormatState disabling built-in IFilter issue on Sharepoint SE

Ignazio Londei 1 Reputation point
2022-04-21T13:10:17.15+00:00

Executing the following commmand:

Set-SPEnterpriseSearchFileFormatState -SearchApplication $ssa -Identity XPS -Enable $FALSE

I get the following error message:

"The processing of files of type 'xps' is already supported by the parsing system".
195173-2022-04-06-screenshot-setspenterprisesearchfilefor.jpg

I think, I found, inside the code, the cause of the problem:
195174-2022-04-08-microsoft-ceres-hostcontroller-reposito.png

Is there a workaround?

How can I report to Sharepoint developers team the issue?

I done a report to Microsoft support but they tell me they support "Out of the box" product only.

They tell me that I must have a "MSFT Premier contract" to have a support.

In reality my goal was to install my own custom IFilter but investigating I discovered that the same problem is also present in this much simpler case.

Can someone help me?

SharePoint Server
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A family of Microsoft on-premises document management and storage systems.
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SharePoint: A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.Development: The process of researching, productizing, and refining new or existing technologies.
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SharePoint Server Development
SharePoint Server Development
SharePoint Server: A family of Microsoft on-premises document management and storage systems.Development: The process of researching, productizing, and refining new or existing technologies.
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SharePoint Server Management
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3 answers

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  1. Ignazio Londei 11 Reputation points
    2022-05-19T12:22:37.083+00:00

    I have done clean installation of Sharepoint SE on the following system.

    203733-2022-05-19-spsetest-servercontext.png

    I have installed and reinstalled Search service application multiple time.
    The last time the file Default-manifest.txt isn’t generated, but we continue to have the same errors.
    I don’t understand why someone don’t reproduce the issue.

    The Sharepoint log I have is the following:

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Entering BeginProcessing Method of Set-SPEnterpriseSearchFileFormatState. f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Leaving BeginProcessing Method of Set-SPEnterpriseSearchFileFormatState. f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Entering ProcessRecord Method of Set-SPEnterpriseSearchFileFormatState. f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation Config DB a99o1 Medium
    Cloning object 0a273f54-d944-44c4-9ce2-4bc1d6ebb8eb f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation Config Cache a0ic2 Medium
    Refreshed SPPersistedObject with Name AppSearch1, Id 0a273f54-d944-44c4-9ce2-4bc1d6ebb8eb, Parent fec113d5-e9a2-43e2-8102-5bf18a38e2be, Version 40208.
    Last update info: [User: ITCONSULT\spseservice Process:OWSTIMER (2264) Machine:SPSETEST Time:May 18, 2022 07:00:55.0000
    Stack trace (Thread [20] CorrelationId [589a3ea0-dc31-80a7-bc67-fdf0fe288f80]): ] f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.29 PowerShell.exe (0x0174) 0x0B34 Search Search Platform Services barqy High
    GetValue : object not found for (valueName = ServiceUser ProductKeyName = HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\16.0\Search) f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.33 PowerShell.exe (0x0174) 0x0B34 Search Search Platform Services barqy High
    GetValue : object not found for (valueName = ServiceUser ProductKeyName = HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\16.0\Search) f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.35 PowerShell.exe (0x0174) 0x0B34 Search Search Platform Services barqy High
    GetValue : object not found for (valueName = ServiceUser ProductKeyName = HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\16.0\Search) f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:54.39 PowerShell.exe (0x0174) 0x0B34 Search Search Platform Services barqy High
    GetValue : object not found for (valueName = ServiceUser ProductKeyName = HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\16.0\Search) f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.12 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Search Platform Services aiyx3 Medium
    HostControllerClient : Connecting to host controller at address: URI[s=net.tcp,h=spsetest,p=808,r=ceres_hostcontroller_nettcp] f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.15 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Search Platform Services aiyx3 Medium
    HostControllerClient : Connecting to host controller at address: URI[s=net.tcp,h=spsetest,p=808,r=ceres_hostcontroller_nettcp] f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.21 hostcontrollerservice.exe (0x1038) 0x3288 Search Search HostController ad5eq Monitorable
    RepositoryManager: Module Microsoft.DocParsing, Version=0.0.0.0, Culture=neutral, PublicKeyToken=0fbbedb750799a68 from Microsoft.DocParsing.dll is already installed - threadId: 22

    05/19/2022 01:14:55.21 hostcontrollerservice.exe (0x1038) 0x3288 Search Search HostController ad5eq Monitorable
    RepositoryManager: Install of C:\Users\spseservice\AppData\Local\Temp\HostController\Downloads\1603184814\Microsoft.DocParsing.dll failed.
    [Cause: Module Microsoft.DocParsing, Version=0.0.0.0, Culture=neutral, PublicKeyToken=0fbbedb750799a68 from Microsoft.DocParsing.dll is already installed] - threadId: 22

    05/19/2022 01:14:55.21 hostcontrollerservice.exe (0x1038) 0x3288 Search Search Platform Services agw7x Critical
    Repository installation failed. File: C:\Users\spseservice\AppData\Local\Temp\HostController\Downloads\1603184814\Microsoft.DocParsing.dll
    Error: Microsoft.Ceres.HostController.Repository.RepositoryException: Module Microsoft.DocParsing, Version=0.0.0.0, Culture=neutral, PublicKeyToken=0fbbedb750799a68
    from Microsoft.DocParsing.dll is already installed
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.Install(String moduleFileName, Boolean validateDependencies)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.Install(String moduleFileName)

    05/19/2022 01:14:55.22 hostcontrollerservice.exe (0x1038) 0x3288 Search Search HostController ad5eq Monitorable
    WcfHostController: Failed to install module Microsoft.DocParsing.dll.
    [Cause: Module Microsoft.DocParsing, Version=0.0.0.0, Culture=neutral, PublicKeyToken=0fbbedb750799a68 from Microsoft.DocParsing.dll is already installed] - threadId: 22

    05/19/2022 01:14:55.22 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Search Platform Services aiyx4 Medium
    HostControllerClient : Reconnecting to host controller after exception.
    System.ServiceModel.FaultException: Module Microsoft.DocParsing, Version=0.0.0.0, Culture=neutral, PublicKeyToken=0fbbedb750799a68 from Microsoft.DocParsing.dll is already installed
    Server stack trace:
    at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
    Exception rethrown at [0]:
    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
    at Microsoft.Ceres.CoreServices.HostController.IHostController.InstallModule(RemoteFileInfo request)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.WrapCallT f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.23 hostcontrollerservice.exe (0x1038) 0x23C8 Search Search HostController ad5eq Monitorable
    RepositoryManager: Install of C:\Users\spseservice\AppData\Local\Temp\HostController\Downloads\645385132\Microsoft.DocParsing.dll failed.
    [Cause: Module contents does not conform to detected module type: System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies.
    An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName) ] - threadId: 24

    05/19/2022 01:14:55.23 hostcontrollerservice.exe (0x1038) 0x23C8 Search Search Platform Services agw7x Critical
    Repository installation failed.
    File: C:\Users\spseservice\AppData\Local\Temp\HostController\Downloads\645385132\Microsoft.DocParsing.dll
    Error: Microsoft.Ceres.HostController.Repository.RepositoryException:
    Module contents does not conform to detected module type:
    System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies.
    An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.Install(String moduleFileName, Boolean validateDependencies)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.Install(String moduleFileName)

    05/19/2022 01:14:55.23 hostcontrollerservice.exe (0x1038) 0x23C8 Search Search HostController ad5eq Monitorable
    WcfHostController: Failed to install module Microsoft.DocParsing.dll.
    [Cause: Module contents does not conform to detected module type: System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies.
    An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName) ] - threadId: 24

    05/19/2022 01:14:55.23 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Document Parsing 898f4 Unexpected
    ParsingAdminService - Failed to save parsing configuration.
    Will reload configuration.
    System.ArgumentException: Exception while communicating with Host Controller at spsetest:
    Module contents does not conform to detected module type: System.BadImageFormatException:
    Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.HandleException(Exception e)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.WrapCallT
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.CreateConfigurationPackage(String keyFile)
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.Save() f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.25 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Document Parsing 898f7 High
    ParsingAdminService - Loading format registry. View '16.0.0.0'. Format registry package '16.0.0.0'. f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.33 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Document Parsing ajp9a Unexpected
    ParsingManagementAgent - Failed to disable parsing of format xps.
    System.ArgumentException: Exception while communicating with Host Controller at spsetest: Module contents does not conform to detected module type:
    System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.HandleException(Exception e)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.WrapCallT
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.CreateConfigurationPackage(String keyFile)
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.Save()
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.EnableParsing(String formatId, Boolean enable)
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingManagementAgent.EnableParsing(String formatId, Boolean enable) f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.33 NodeRunnerAdmin1-0a273f54-d944- (0x2C3C) 0x21CC Search Search Platform Services ak8y1 Medium
    Exception in remote service invocation (service=Admin92, method=http://schemas.microsoft.com/ceres/Parsing/2011/08/agents/IParsingManagementAgent/EnableParsing, user=ITCONSULT\nlbadmin):
    System.ArgumentException: Exception while communicating with Host Controller at spsetest:
    Module contents does not conform to detected module type:
    System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    ---> System.BadImageFormatException: Could not load file or assembly 'Microsoft.DocParsing.dll' or one of its dependencies.
    An attempt was made to load a program with an incorrect format.
    File name: 'Microsoft.DocParsing.dll'
    at System.Reflection.AssemblyName.nGetFileInformation(String s)
    at System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)
    at Microsoft.Ceres.HostController.Repository.RepositoryManager.LoadAssemblyModuleInfo(String moduleFileName)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.HandleException(Exception e)
    at Microsoft.Ceres.CoreServices.HostController.AbstractHostControllerWrapper.WrapCallT
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.CreateConfigurationPackage(String keyFile)
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.Save()
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingAdminService.EnableParsing(String formatId, Boolean enable)
    at Microsoft.Ceres.ContentEngine.Parsing.Component.ParsingManagementAgent.EnableParsing(String formatId, Boolean enable)
    at SyncInvokeEnableParsing(Object , Object[] , Object[] )
    at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
    at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
    at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
    at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
    at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

    05/19/2022 01:14:55.34 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf2 High
    System.InvalidOperationException: The processing of files of type 'xps' is already supported by the parsing system.
    at Microsoft.Office.Server.Search.Administration.DocumentParserAdmin.EnableParsing(String formatId, Boolean enable)
    at Microsoft.Office.Server.Search.Cmdlet.SetDocumentParserFileFormatState.UpdateDataObject()
    at Microsoft.SharePoint.PowerShell.SPCmdlet.ProcessRecord() f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.34 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 91ux High
    Error Category: InvalidData Target Object Microsoft.Office.Server.Search.Cmdlet.SetDocumentParserFileFormatState Details NULL RecommendedAction NULL f2d83ea0-3c55-80a7-bc67-f07ffc36cf53

    05/19/2022 01:14:55.39 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Leaving ProcessRecord Method of Set-SPEnterpriseSearchFileFormatState. 6d63e9fe-692f-0000-c0ba-846d2f69d801

    05/19/2022 01:14:55.39 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Entering EndProcessing Method of Set-SPEnterpriseSearchFileFormatState. 6d63e9fe-692f-0000-c0ba-846d2f69d801

    05/19/2022 01:14:55.39 PowerShell.exe (0x0174) 0x0B34 SharePoint Foundation PowerShell 6tf0 Medium
    Leaving EndProcessing Method of Set-SPEnterpriseSearchFileFormatState. 6d63e9fe-692f-0000-c0ba-846d2f69d801

    I add the registry key “ServiceUser”. The relative warning has disappeared, but the logs remain basically the same.

    1 person found this answer helpful.

  2. Tong Zhang_MSFT 9,141 Reputation points
    2022-04-26T08:11:12.23+00:00

    Hi @Ignazio Londei ,

    Thank you for the detailed description of the case.

    When I received the case, I searched a lot of documents did a lot of researches. But The issue has not been reproduced on my server, and I found postings similar to this error ,You can refer to and troubleshoot .Hope it can help you .Thanks for your understanding and support.

    Similar issues:
    Error: "The processing of files of type 'xps' is already supported by the parsing system"
    Error: "Version string portion was too short or too long"

    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.


    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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  3. Ignazio Londei 1 Reputation point
    2022-04-26T10:01:10.877+00:00

    Hi @Tong Zhang_MSFT ,
    Microsoft technical support told me that they reproduced it, but that they would not assist me without a "MSFT Premier contract".
    So I would like to confirm that the problem has not been reproduced on a your system with Sharepoint SE.
    This should mean that the problem is related to the configuration.

    The second link does not seem to me related to the problem.

    I had already seen the first link but it is related to Sharepont 2013 and not to SE.
    The file indicated in the response is not located in: C:\Program Files\ Microsoft Office Servers\15.0\Data\Office Server\Applications\Search\Repository\Default-manifest.xml but in E:\SharePointData\Index\Office Server\Applications\Search\Repository\Default-manifest.txt.
    The path is partly different because the system engineer chose a specific path for the data/log during the installation process.
    However if it were in C:\Program Files, I think, it should contain "16.0" in the path.
    Also the extension is different from xml-> txt.

    The first lines in the file Default-manifest.txt are the following:

    E:\SharePointData\Index\Office Server\Applications\Search\Repository\Journal\e9ac9b13-f7e2-48c3-99b1-9fc8c8a8dcc4\Microsoft.DocParsing.dll
    Microsoft.DocParsing, Version = 0.0.0.0, Culture = neutral, PublicKeyToken = 0fbbedb750799a68
    E:\SharePointData\Index\Office Server\Applications\Search\Repository\Journal\ec0d23eb-7e8b-4d88-a2a3-e83c8cad9678\Microsoft.UserDictionaries.EntityExtraction.Companies.Inclusions.dll
    Microsoft.UserDictionaries.EntityExtraction.Companies.Inclusions, Version = 15.0.8082.15928, Culture = neutral, PublicKeyToken = 0fbbedb750799a68
    E:\SharePointData\Index\Office Server\Applications\Search\Repository\Journal\4cbfdbcd-b9b4-4bf6-8010-2950edd8d657\Microsoft.UserDictionaries.EntityExtraction.Companies.Exclusions.dll
    Microsoft.UserDictionaries.EntityExtraction.Companies.Exclusions, Version = 15.0.8082.15928, Culture = neutral, PublicKeyToken = 0fbbedb750799a68

    The dlls Microsoft.DocParsing.dll with version 0.0.0.0 and the others with version: 15.x, make me doubt their correctness but I believe that making changes on my own initiative within this file is high risk.