CreateProcess wirft Kernelbase Error

[venice2]

Wenn ich CreateProcess ohne UniqueString aufrufe wirft es einen Kernelbase Error.
Rufe ich es mit auf sind die Strings nicht lesbar.

Delphi-Quellcode:

function PipeExec(CommandLine, Path: String; EnvironementStrings: PChar; var StdIO: TStdIO; UserToken: THandle; ShowWindow: DWORD = SW_HIDE): TProcessInformation;

  UniqueString(CommandLine);

  if UserToken = 0 then
  begin
    if not CreateProcess( nil,                  // must be NIL for win16 apps under NT, including DOS progs
                   pchar(CommandLine),
                   nil,                         // Process security attibutes. Sue same as current
                   nil,                         // Thread security attibutes. Sue same as current
                   true,                        // Inherite handles. Must be true for IO redirection
                   ProcessCreationFlags,        // creation flags
                   EnvironementStrings,         // If using with a CGI aplication, you MUST pass the HTTP headers as env. strings in  this variable
                   PathPChar,                   // Directory of the new process
                   SI,                          // SISTEMINFO Structure used to initialize the new process
                   result)                     // PROCESINFORMATION structure used to control the newly created process
    then
      RaiseLastOSError;

Warum?