C# Sample Code to Install and Uninstall Window Service

using System;
using System.Runtime.InteropServices;

namespace SvcInstaller
{
class ServiceInstaller
{
#region Private Variables

private string _servicePath;
private string _serviceName;
private string _serviceDisplayName;

#endregion Private Variables
#region DLLImport

[DllImport("advapi32.dll")]
public static extern IntPtr OpenSCManager(string lpMachineName,string lpSCDB, int scParameter);

[DllImport("Advapi32.dll")]
public static extern IntPtr CreateService(IntPtr SC_HANDLE,string lpSvcName,string lpDisplayName,
int dwDesiredAccess,int dwServiceType,int dwStartType,int dwErrorControl,string lpPathName,
string lpLoadOrderGroup,int lpdwTagId,string lpDependencies,string lpServiceStartName,string lpPassword);

[DllImport("advapi32.dll")]
public static extern void CloseServiceHandle(IntPtr SCHANDLE);

[DllImport("advapi32.dll")]
public static extern int StartService(IntPtr SVHANDLE,int dwNumServiceArgs,string lpServiceArgVectors);

[DllImport("advapi32.dll",SetLastError=true)]
public static extern IntPtr OpenService(IntPtr SCHANDLE,string lpSvcName,int dwNumServiceArgs);

[DllImport("advapi32.dll")]
public static extern int DeleteService(IntPtr SVHANDLE);

[DllImport("kernel32.dll")]
public static extern int GetLastError();

#endregion DLLImport

///

/// This method installs and runs the service in the service conrol manager.
///

/// The complete path of the service.
/// Name of the service.
/// Display name of the service.
/// True if the process went thro successfully.
/// False if there was any error.

public bool InstallService(string svcPath, string svcName, string svcDispName)
{
#region Constants declaration.
int SC_MANAGER_CREATE_SERVICE = 0x0002;
int SERVICE_WIN32_OWN_PROCESS = 0x00000010;
int SERVICE_ERROR_NORMAL = 0x00000001;
int STANDARD_RIGHTS_REQUIRED = 0xF0000;
int SERVICE_QUERY_CONFIG = 0x0001;
int SERVICE_CHANGE_CONFIG = 0x0002;
int SERVICE_QUERY_STATUS = 0x0004;
int SERVICE_ENUMERATE_DEPENDENTS = 0x0008;
int SERVICE_START =0x0010;
int SERVICE_STOP =0x0020;
int SERVICE_PAUSE_CONTINUE =0x0040;
int SERVICE_INTERROGATE =0x0080;
int SERVICE_USER_DEFINED_CONTROL =0x0100;
int SERVICE_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED
SERVICE_QUERY_CONFIG
SERVICE_CHANGE_CONFIG
SERVICE_QUERY_STATUS
SERVICE_ENUMERATE_DEPENDENTS
SERVICE_START
SERVICE_STOP
SERVICE_PAUSE_CONTINUE
SERVICE_INTERROGATE
SERVICE_USER_DEFINED_CONTROL);
int SERVICE_AUTO_START =0x00000002;
int SERVICE_DEMAND_START = 0x00000003;

#endregion Constants declaration.

try
{
IntPtr sc_handle = OpenSCManager(null,null,SC_MANAGER_CREATE_SERVICE);

if (sc_handle.ToInt32() != 0)

{
IntPtr sv_handle = CreateService(sc_handle,svcName,svcDispName,SERVICE_ALL_ACCESS,SERVICE_WIN32_OWN_PROCESS,SERVICE_AUTO_START,SERVICE_ERROR_NORMAL,svcPath,null,0,null,null,null);

if(sv_handle.ToInt32() ==0)
{
CloseServiceHandle(sc_handle);
return false;
}
else
{
CloseServiceHandle(sc_handle);
return true;
}

}

else

return false;

}

catch(Exception e)

{

throw e;

}

}

///

/// This method uninstalls the service from the service conrol manager.
///

/// Name of the service to uninstall.

public bool UnInstallService(string svcName)
{
int GENERIC_WRITE = 0x40000000;
IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);

if(sc_hndl.ToInt32() !=0)
{
int DELETE = 0x10000;
IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);

if(svc_hndl.ToInt32() !=0)
{
int i = DeleteService(svc_hndl);

if (i != 0)
{
CloseServiceHandle(sc_hndl);
return true;
}
else
{
CloseServiceHandle(sc_hndl);
return false;
}

}

else
return false;
}

else
return false;
}

}