Compile Errors.

A current project involves writing a Windows Service. Due to my lack of experience in C++, I've read an article on creating very basic services.
I've understood everything that was said; however when I try to compile the code, the compiler shows several errors.

Here is the code that I am using...

#include <windows.h>
#include <stdio.h>

#define SLEEP_TIME 5000;
#define LOGFILE "C:\\log.txt";

int WriteToLog(char* str){
      FILE* log;
      log = fopen(LOGFILE, "a+");

      if (log == NULL){
            return -1;
      }

      fprintf(log, "%s\n", str);
      fclose(log);
      return 0;
}

SERVICE_STATUS        ServiceStatus;
SERVICE_STATUS_HANDLE hStatus;

void ServiceMain(int charc, char** argv);
void ControlHandler(DWORD request);
int InitService();

void main(){
      SERVICE_TABLE_ENTRY ServiceTable[2];
      ServiceTable[0].lpServiceName = "MemoryStatusTestService";
      ServiceTable[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTION) ServiceMain;
      ServiceTable[1].lpServiceName = NULL;
      ServiceTable[1].lpServiceProc = NULL;
      // Start the control dispatcher thread for the service
      StartServiceCtrlDispatcher(ServiceTable);
}

int InitService(){
      return WriteToLog("Monitoring Started");
}

void ServiceMain(int argc, char** argv){
      int error;
      ServiceStatus.dwServiceType  = SERVICE_WIN32;
      ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
      ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
      ServiceStatus.dwWin32ExitCode = 0;
      ServiceStatus.dwServiceSpecificExitCode = 0;
      ServiceStatus.dwCheckPoint = 0;
      ServiceStatus.dwWaitHint = 0;
      hStatus = RegisterServiceCtrlHandler("MemoryStatusServiceTest", (LPHANDLER_FUNCTION) ControlHandler);

      if (hStatus == (SERVICE_STATUS_HANDLE) 0){
            // Registering Control Handler failed.
            return;
      }

      // Initialize Service
      error = InitService();

      if (error){
            // Initizlization failed
            ServiceStatus.dwCurrentState = SERVICE_STOPPED;
            ServiceStatus.dwWin32ExitCode = -1;
            SetServiceStatus(hStatus, &ServiceStatus);
            return;
      }

      // Report the status the the SCM.
      ServiceStatus.dwCurrentState = SERVICE_RUNNING;
      SetServiceStatus(hStatus, &ServiceStatus);
      MEMORYSTATUS memory;

      // The worker loop of the service
      while (ServiceStatus.dwCurrentState == SERVICE_RUNNING)      {
            char buffer[16];
            GlobalMemoryStatus(&memory);
            sprintf(buffer, "%d", memory.dwAvailPhys);
            int result = WriteToLog(buffer);

            if (result){
                  ServiceStatus.dwCurrentState = SERVICE_STOPPED;
                  ServiceStatus.dwWin32ExitCode = -1;
                  SetServiceStatus(hStatus, &ServiceStatus);
                  return;
            }

            Sleep(SLEEP_TIME);
      }

      return;
}

void ControlHandler(DWORD request){
      switch (request){
            case SERVICE_CONTROL_STOP:
                  WriteToLog("Monitoring stopped.");
                  ServiceStatus.dwWin32ExitCode = 0;
                  ServiceStatus.dwCurrentState  = SERVICE_STOPPED;
                  SetServiceStatus(hStatus, &ServiceStatus);
                  return;

            case SERVICE_CONTROL_SHUTDOWN:
                  WriteToLog("Monitoring stopped.");
                  ServiceStatus.dwWin32ExitCode = 0;
                  ServiceStatus.dwCurrentState  = SERVICE_STOPPED;
                  SetServiceStatus(hStatus, &ServiceStatus);
                  return;

            default:
                  break;
      }

      // Report current status
      SetServiceStatus(hStatus, &ServiceStatus);
      return;
}

And here are the compile errors I'm receiving...
Compiling...
Service.cpp
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(11) : error C2143: syntax error : missing ')' before ';'
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(11) : error C2660: 'fopen' : function does not take 1 parameters
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(11) : error C2143: syntax error : missing ';' before ','
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(11) : error C2059: syntax error : ')'
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(107) : error C2143: syntax error : missing ')' before ';'
C:\Documents and Settings\Adam\Desktop\OwnKeyLog\Service\Service.cpp(107) : error C2059: syntax error : ')'
Error executing cl.exe.

I can't see any syntax errors and this is driving me nuts so I have come for help.
I have very little C++ programming experience so please go easy on me.
Any help or suggestions will be greatly appreciated.

Cheers

-OBCT