CreateProcess() Problem

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Can anyone tell me why this call to CreateProcess() succeeds when the .EXE
extension is used for the application name (in this case "NOTEPAD.EXE"), but
fails with Error 2 (file not found) when the .EXE extension is omitted. (The
docs say that the EXE extension should be appended by CreateProcess() if
omitted). It also fails if I do not provide the full path to the application,
though in this case the path to NOTEPAD is included in the Environment.

DWORD error;
int pret;
STARTUPINFO theStartupInfo;
PROCESS_INFORMATION theProcessInfo;
memset(&theStartupInfo, 0, sizeof(theStartupInfo));
memset(&theProcessInfo, 0, sizeof(theProcessInfo));
GetStartupInfo( &theStartupInfo );
pret = CreateProcess(
_T("C:\\Windows\\NOTEPAD.EXE"),
_T(" C:\\testfile.txt"),
NULL, // Process Attributes NULL default
NULL, // Thread attributes NULL
FALSE, // Don't Inherit handles
CREATE_NEW_CONSOLE, //Creation flags
NULL, // Environment same as calling process
NULL, // Current directory same as calling process
&theStartupInfo, // lp to startup info
&theProcessInfo
);
error = GetLastError();

.

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