diff --git a/dlls/kernel/process.c b/dlls/kernel/process.c
index 1a890c32959..417e6589e7c 100644
--- a/dlls/kernel/process.c
+++ b/dlls/kernel/process.c
@@ -951,7 +951,7 @@ static void start_process( void *arg )
         IMAGE_NT_HEADERS *nt;
         LPTHREAD_START_ROUTINE entry;
 
-        LdrInitializeThunk( main_exe_file, 0, 0, 0 );
+        LdrInitializeThunk( 0, 0, 0, 0 );
 
         nt = RtlImageNtHeader( peb->ImageBaseAddress );
         entry = (LPTHREAD_START_ROUTINE)((char *)peb->ImageBaseAddress +
@@ -1039,10 +1039,8 @@ void __wine_kernel_init(void)
     {
     case BINARY_PE_EXE:
         TRACE( "starting Win32 binary %s\n", debugstr_w(main_exe_name) );
-        peb->ImageBaseAddress = LoadLibraryExW( main_exe_name, 0, DONT_RESOLVE_DLL_REFERENCES );
-        CloseHandle( main_exe_file );
-        main_exe_file = 0;
-        if (peb->ImageBaseAddress) goto found;
+        if ((peb->ImageBaseAddress = LoadLibraryExW( main_exe_name, 0, DONT_RESOLVE_DLL_REFERENCES )))
+            goto found;
         MESSAGE( "wine: could not load %s as Win32 binary\n", debugstr_w(main_exe_name) );
         ExitProcess(1);
     case BINARY_PE_DLL:
@@ -1061,8 +1059,6 @@ void __wine_kernel_init(void)
     case BINARY_WIN16:
     case BINARY_DOS:
         TRACE( "starting Win16/DOS binary %s\n", debugstr_w(main_exe_name) );
-        CloseHandle( main_exe_file );
-        main_exe_file = 0;
         __wine_main_argv--;
         __wine_main_argc++;
         __wine_main_argv[0] = "winevdm.exe";
@@ -1079,8 +1075,6 @@ void __wine_kernel_init(void)
             char *unix_name;
 
             TRACE( "starting Winelib app %s\n", debugstr_w(main_exe_name) );
-            CloseHandle( main_exe_file );
-            main_exe_file = 0;
             if ((unix_name = wine_get_unix_file_name( main_exe_name )) &&
                 wine_dlopen( unix_name, RTLD_NOW, error, sizeof(error) ))
             {
@@ -1100,6 +1094,8 @@ void __wine_kernel_init(void)
     }
 
  found:
+    CloseHandle( main_exe_file );
+
     /* build command line */
     set_library_wargv( __wine_main_argv );
     if (!build_command_line( __wine_main_wargv )) goto error;
diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 72022ba5444..d4e946a14f7 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -2015,9 +2015,8 @@ PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
 /******************************************************************
  *		LdrInitializeThunk (NTDLL.@)
  *
- * FIXME: the arguments are not correct, main_file is a Wine invention.
  */
-void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
+void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
 {
     NTSTATUS status;
     WINE_MODREF *wm;
@@ -2058,15 +2057,12 @@ void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3
         req->entry       = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
         /* API requires a double indirection */
         req->name        = &wm->ldr.FullDllName.Buffer;
-        req->exe_file    = main_file;
         req->gui         = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
         wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
         wine_server_call( req );
     }
     SERVER_END_REQ;
 
-    if (main_file) NtClose( main_file ); /* we no longer need it */
-
     RtlEnterCriticalSection( &loader_section );
 
     load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
diff --git a/include/winternl.h b/include/winternl.h
index abe1745348e..6666294a7df 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -1700,7 +1700,7 @@ NTSTATUS  WINAPI LdrFindResourceDirectory_U(HMODULE,const LDR_RESOURCE_INFO*,ULO
 NTSTATUS  WINAPI LdrFindResource_U(HMODULE,const LDR_RESOURCE_INFO*,ULONG,const IMAGE_RESOURCE_DATA_ENTRY**);
 NTSTATUS  WINAPI LdrGetDllHandle(ULONG, ULONG, const UNICODE_STRING*, HMODULE*);
 NTSTATUS  WINAPI LdrGetProcedureAddress(HMODULE, const ANSI_STRING*, ULONG, void**);
-void      WINAPI LdrInitializeThunk(HANDLE,ULONG,ULONG,ULONG);
+void      WINAPI LdrInitializeThunk(ULONG,ULONG,ULONG,ULONG);
 NTSTATUS  WINAPI LdrLoadDll(LPCWSTR, DWORD, const UNICODE_STRING*, HMODULE*);
 void      WINAPI LdrShutdownProcess(void);
 void      WINAPI LdrShutdownThread(void);