# ServiceImplBase Constructor

## Overloads

| [ServiceImplBase(Int32, QTServiceType, Int32, IAdditionalSystemInfo)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Services.ServiceSupport.ServiceImplBase.-ctor.htm#PIX_Services_ServiceSupport_ServiceImplBase__ctor_System_Int32_PIX_Services_ServiceSupport_QTServiceType_System_Int32_SolutionGlobal_SystemInformation_IAdditionalSystemInfo_) |  |  |
| --- | --- | --- |

[](https://help.qlik.com/en-US/qlikview-developer/Subsystems/QMSAPIref/Content/PIX.Services.ServiceSupport.ServiceImplBase.-ctor.htm) [](https://help.qlik.com/en-US/qlikview-developer/Subsystems/QMSAPIref/Content/PIX.Services.ServiceSupport.ServiceImplBase.-ctor.htm)

## ServiceImplBase(Int32, QTServiceType, Int32, IAdditionalSystemInfo)

### Declaration

```

          protected ServiceImplBase(int rootLogID, QTServiceType serviceType, int suggestedPort, IAdditionalSystemInfo additionalSystemInfo = null)
    
  
```

### Parameters

| Type | Name | Description |
| --- | --- | --- |
| System.Int32 | rootLogID |  |
| [QTServiceType](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Services.ServiceSupport.QTServiceType.htm) | serviceType |  |
| System.Int32 | suggestedPort |  |
| SolutionGlobal.SystemInformation.IAdditionalSystemInfo | additionalSystemInfo |  |