usb端口打印机安装的实现方法和注册表关系

有哪位高手知道安装usb端口打印机的实现方法和注册表关系么？？？？当用下面代码安装后还需要在注册表里写些什么东西么？
PRINTER_INFO_2 pi2;
DRIVER_INFO_3 di3;
HANDLE hPrinter;

char* Environment=_TEXT(\"Windows NT x86\");
char lpBuffer[MAX_PATH];

char lpDriverPath[MAX_PATH];
char lpDataFilePath[MAX_PATH];
char lpConfigFilePath[MAX_PATH];
char lpHelpFilePath[MAX_PATH];
char lpDependecy[MAX_PATH];

DWORD uSize=0;
CString str;
DWORD dwErr;
BOOL b;
char buffer[1024];

if (OpenPrinter(\"DRoad USB Printer\",&hPrinter,NULL))
{
DeletePrinter(hPrinter);
ClosePrinter(hPrinter);
}
DeletePrinterDriver(NULL,\"Windows NT x86\",\"DRoad USB Printer\");


GetPrinterDriverDirectory(NULL,Environment,1,(LPBYTE)lpBuffer,MAX_PATH,&uSize);

lstrcpy(_TEXT(lpDriverPath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDriverPath),_TEXT(\"\\\\UNIDRV.DLL\"));

lstrcpy(_TEXT(lpDataFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDataFilePath),_TEXT(\"\\\\Dragon.GPD\"));

lstrcpy(_TEXT(lpConfigFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpConfigFilePath),_TEXT(\"\\\\UNIDRVUI.DLL\"));

lstrcpy(_TEXT(lpHelpFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpHelpFilePath),_TEXT(\"\\\\UNIDRV.HLP\"));

ZeroMemory(&di3, sizeof(DRIVER_INFO_3));
di3.cVersion = 0x03;
di3.pName =_TEXT(\"DRoad USB Printer\");
di3.pEnvironment = Environment;
di3.pDriverPath = lpDriverPath;
di3.pDataFile =lpDataFilePath;
di3.pConfigFile =lpConfigFilePath;
di3.pDependentFiles = \"Unires.dll\\0Stdname.gpd\\0Dragon.ini\\0Dragon.dll\\0dragon.inf\\0\\0\";
di3.pHelpFile = lpHelpFilePath;
di3.pMonitorName = NULL;
di3.pDefaultDataType = _TEXT(\"RAW\");

SetLastError(0);
if (!AddPrinterDriver(NULL, 3, (LPBYTE)&di3))
{
dwErr = GetLastError();
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwErr,NULL,buffer,sizeof(buffer),NULL);
MessageBox(buffer);
}

ZeroMemory(&pi2, sizeof(PRINTER_INFO_2));
pi2.pServerName=NULL;
pi2.pPrinterName = _TEXT(\"DRoad USB Printer\");
pi2.pPortName = _TEXT(\"USB001\");
pi2.pDriverName = _TEXT(\"DRoad USB Printer\"); pi2.pPrintProcessor = _TEXT(\"WinPrint\");
pi2.pDatatype = _TEXT(\"RAW\");
pi2.AveragePPM = 18;

SetLastError(0);
if ((hPrinter = AddPrinter(NULL, 2, (LPBYTE)&pi2))==NULL)
{
dwErr = GetLastError();
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwErr, NULL,buffer,sizeof(buffer),NULL);
MessageBox(buffer);
}

ClosePrinter(hPrinter);

头疼的还有，运行时addprinterdriver经常失败，GetLastError返回2，说系统找不到指定的文件。而如果在运行addprinterdriver之前用手工或用installshield把所有有关于驱动的文件都拷贝到GetPrinterDriverDirectory返回的目录下而且要拷贝到3的目录下，那么就不会出现这个问题了。可是addprinter成功后。这时去看打印机是否安装上了，很高兴的是安装上了，不过头疼的还有一个问题就是，当我把打印机再次插拔时，系统又提示说找到一个硬件，然后弹出硬件安装向导。这说明我的打印机根本没有安装成功。我的打印机是usb接口的。不知道还要在注册表里写些什么东东，请高手赐教指点，谢谢了！斑竹呀，这里有很多这方面的讨论，可惜没有一个是完全的，所以很多人碰到这些问题时，没有一个是可以解决的。能否整理一下这方面的知识点呢，或把代码发放出来，我相信有很多人都会感谢你的！！！

怎么没有人回复的呀，不过问题俺已经解决。自己也顶一下。。。呵呵