Why does CreateProcess give error 193 (%1 is not a valid Win32 app)
Solution 1
The most likely explanations for that error are:
- The file you are attempting to load is not an executable file.
CreateProcess
requires you to provide an executable file. If you wish to be able to open any file with its associated application then you needShellExecute
rather thanCreateProcess
. - There is a problem loading one of the dependencies of the executable, i.e. the DLLs that are linked to the executable. The most common reason for that is a mismatch between a 32 bit executable and a 64 bit DLL, or vice versa. To investigate, use Dependency Walker's profile mode to check exactly what is going wrong.
Reading down to the bottom of the code, I can see that the problem is number 1.
Solution 2
Your Button2Click
and Button3Click
functions pass klad.xls
and smimime.txt
. These files most likely aren't actual executables indeed.
In order to open arbitrary files using the application associated with them, use ShellExecute
Comments
-
Jan Doggen almost 3 years
The code below fails to start documents. I get error 193 (%1 is not a valid Win32 app). Starting executables work fine. The files are properly associated, they start the corresponding app when double clicked. I have searched SO and elsewhere for the error message, createprocess stuff etc. (E.g. Why is CreateProcess failing in Windows Server 2003 64-bit? I know about quoting the command line.
This is a Delphi XE2 (Update 4) Win32 app in a Win7 64bit VMWare VM.
The code also fails on the host machine (Win7 64 bit) and in a Virtual PC VM with 32bit XP.
The apps that should start in the Win7 VM (Excel 2003 and Crimson Editor) are 32 bit.
The failure occurs both when starting from the IDE or when running the test app standalone
It used to be Delphi2007 code, the compiled D2007 app where this code comes from works fine everywhere.
What's wrong with the code? It's almost as if I'm overlooking something very obvious....
Thanks in advance,
Jan
procedure StartProcess(WorkDir, Filename: string; Arguments : string = ''); var StartupInfo : TStartupInfo; ProcessInfo : TProcessInformation; lCmd : string; lOK : Boolean; LastErrorCode: Integer; begin FillChar( StartupInfo, SizeOf( TStartupInfo ), 0 ); StartupInfo.cb := SizeOf( TStartupInfo ); StartupInfo.dwFlags := STARTF_USESHOWWINDOW; StartupInfo.wShowWindow := sw_Normal; FillChar( ProcessInfo, SizeOf( TProcessInformation ), 0 ); lCmd := '"' + WorkDir + FileName + '"'; // Quotes are needed https://stackoverflow.com/questions/265650/paths-and-createprocess if Arguments <> '' then lCmd := lCmd + ' ' + Arguments; lOk := CreateProcess(nil, PChar(lCmd), nil, nil, FALSE, // TRUE makes no difference 0, // e.g. CREATE_NEW_CONSOLE or NORMAL_PRIORITY_CLASS makes no difference nil, nil, // PChar(WorkDir) makes no difference StartupInfo, ProcessInfo); if lOk then begin try WaitForSingleObject(ProcessInfo.hProcess, INFINITE); finally CloseHandle( ProcessInfo.hThread ); CloseHandle( ProcessInfo.hProcess ); end; end else begin LastErrorCode := GetLastError; ShowMessage(IntToStr(LastErrorCode) + ': ' + SysErrorMessage(LastErrorCode)); end; end; procedure TFrmStartProcess.Button1Click(Sender: TObject); begin StartProcess('c:\program files (x86)\axe3\','axe.exe'); // Works end; procedure TFrmStartProcess.Button2Click(Sender: TObject); begin StartProcess('d:\','klad.xls'); // Fails end; procedure TFrmStartProcess.Button3Click(Sender: TObject); begin StartProcess('d:\','smimime.txt'); // Fails end;