CString getOSName()
{
	CString osName = _T("");
	int a=0,b=0,i=0,j=0;  
	_asm  
	{  
		pushad  
			mov ebx,fs:[0x18] ; get self pointer from TEB  
			mov eax,fs:[0x30] ; get pointer to PEB / database  
			mov ebx,[eax+0A8h] ; get OSMinorVersion  
			mov eax,[eax+0A4h] ; get OSMajorVersion  
			mov j,ebx  
			mov i,eax  
			popad  
	}  

	if((i==5)&&(j==0))  
	{  
		osName = _T("当前系统版本为：Windows 2000");  
	}  
	else if((i==5)&&(j==1))  
	{   
		osName = _T("当前系统版本为：Windows XP");  
	}  
	else if((i==5)&&(j==2))  
	{  
		osName = _T("当前系统版本为：Windows 2003");  
	}  
	else if((i==6)&&(j==0))  
	{  
		osName = _T("当前系统版本为：Windows Vista");  
	}  
	else if((i==6)&&(j==1))  
	{  
		osName = _T("当前系统版本为：Windows 7");