Deleting a Windows service program example using Win32 C code
// For WinXp as a target
#define _WIN32_WINNT 0x0501
#include <windows.h>
#include <stdio.h>
int main(void)
{
SC_HANDLE schSCManager, schService;
// The service name must be a valid name. This fictitious service is available in the running machine...
// It is service name not the displayed name...change accordingly...
LPCTSTR lpszServiceName = L"MyTelnetSrv";
// LPCTSTR lpszServiceName = L"MySampleSrv";
// Open a handle to the SC Manager database...
schSCManager = OpenSCManager(
NULL, // local machine
NULL, // SERVICES_ACTIVE_DATABASE database is opened by default
SC_MANAGER_ALL_ACCESS); // full access rights, not a good choice :o)
if (NULL == schSCManager)
printf("OpenSCManager() failed, error: %d.\n", GetLastError());
else
printf("OpenSCManager() looks OK.\n");
schService = OpenService(
schSCManager, // SCManager database
lpszServiceName, // name of service
DELETE); // only need DELETE access
if (schService == NULL)
printf("OpenService() failed, error: %d.\n", GetLastError());
else
printf("OpenService() looks OK.\n");
if (!DeleteService(schService))
printf("DeleteService() failed, error: %d.\n", GetLastError());
else
printf("DeleteService(), %S is deleted.\n", lpszServiceName);
if (CloseServiceHandle(schService) == 0)
printf("CloseServiceHandle() failed, error: %d.\n", GetLastError());
else
printf("CloseServiceHandle() looks OK.\n");
return 0;
}
Output example:
OpenSCManager() looks OK.
OpenService() looks OK.
DeleteService(), MySampleSrv is deleted.
CloseServiceHandle() looks OK.
Press any key to continue . . .
OpenSCManager() looks OK.
OpenService() looks OK.
DeleteService(), MyTelnetSrv is deleted.
CloseServiceHandle() looks OK.
Press any key to continue . . .
Verify the deleted service. Click Start->Programs->Administrative Tools->Services->Try finding "MyOwnTelnetService" service. It should not be there.
Compiler: Visual C++ Express Edition 2005
Compiled on Platform: Windows XP Pro SP2
Target platform: none, just for learning and fun
Header file: Standard and Windows
Additional library: Windows Platform SDK
Additional project setting: Set project to be compiled as C. Click Project menu->your_project_name Properties->Configuration Properties->C/C++->Advanced->Compiled As: Compiled as C Code (/TC)
Other info: non-CLR or unmanaged. Need to add Advapi32.lib (Advapi32.dll) to the project. Click the Project menu->Select the your_project_name Properties... sub menu->Expand the Configuration Properties folder on the left pane->Expand the Linker subfolder->Select the Input subfolder->Select the Additional Dependencies field on the right pane->Click the ... at the end of the field->Type in 'Advapi32.lib' in the empty pane->Click the OK button->Click the OK button second time to close the project Properties dialog.
To do: Deleting a Windows service C program example
To show: The Windows service programming based on Win32 library