無法刪除代碼R3

#include <windows.h> BOOL OccupyFile( LPCTSTR lpFileName ); int main() { OccupyFile("c://aaa111.txt"); return 0; } void RaiseToDebugP() { HANDLE hToken; HANDLE hProcess = GetCurrentProcess(); if ( OpenProcessToken(hProcess, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken) ) { TOKEN_PRIVILEGES tkp; if ( LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &tkp.Privileges[0].Luid) ) { tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; BOOL bREt = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, NULL, 0) ; } CloseHandle(hToken); } } BOOL OccupyFile( LPCTSTR lpFileName ) { BOOL bRet; RaiseToDebugP(); HANDLE hProcess = OpenProcess( PROCESS_DUP_HANDLE, FALSE, 4); // 4爲system進程號 if ( hProcess == NULL ) { hProcess = OpenProcess( PROCESS_DUP_HANDLE, FALSE, 8); // 2K下是 8?? if ( hProcess == NULL ) return FALSE; } HANDLE hFile; HANDLE hTargetHandle; hFile = CreateFile( lpFileName, GENERIC_READ, 0, NULL, CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL, NULL); if ( hFile == INVALID_HANDLE_VALUE ) { CloseHandle( hProcess ); return FALSE; } bRet = DuplicateHandle( GetCurrentProcess(), hFile, hProcess, &hTargetHandle, 0, FALSE, DUPLICATE_SAME_ACCESS|DUPLICATE_CLOSE_SOURCE); CloseHandle( hProcess ); return bRet; }

 
代碼轉載自http://www.debugman.com/read.php?tid=860