int watchMask;		/* OR'ed combination of TCL_READABLE,
				 * TCL_WRITABLE, or TCL_EXCEPTION: indicates
				 * which events should be reported. */
    int flags;			/* State flags, see above for a list. */
    TclFile readFile;		/* Output from pipe. */
    TclFile writeFile;		/* Input from pipe. */
    TclFile errorFile;		/* Error output from pipe. */
    Tcl_Size numPids;		/* Number of processes attached to pipe. */
    Tcl_Pid *pidPtr;		/* Pids of attached processes. */
    Tcl_ThreadId threadId;	/* Thread to which events should be reported.
				 * This value is used by the reader/writer
				 * threads. */
    TclPipeThreadInfo *writeTI;	/* Thread info of writer and reader, this */
    TclPipeThreadInfo *readTI;	/* structure owned by corresponding thread. */
    HANDLE writeThread;		/* Handle to writer thread. */

/*
 * Declarations for functions used only in this file.
 */

static int		ApplicationType(Tcl_Interp *interp,
			    const char *fileName, char *fullName);
static void		BuildCommandLine(const char *executable, Tcl_Size argc,
			    const char **argv, Tcl_DString *linePtr);
static BOOL		HasConsole(void);
static int		PipeBlockModeProc(void *instanceData, int mode);
static void		PipeCheckProc(void *clientData, int flags);
static int		PipeClose2Proc(void *instanceData,
			    Tcl_Interp *interp, int flags);
static int		PipeEventProc(Tcl_Event *evPtr, int flags);

	break;
    default:
	createMode = OPEN_EXISTING;
	break;
    }

    Tcl_DStringInit(&ds);
    nativePath = Tcl_UtfToWCharDString(path, TCL_INDEX_NONE, &ds);

    /*
     * If the file is not being created, use the existing file attributes.
     */

    flags = 0;
    if (!(mode & O_CREAT)) {

 *
 * Side effects:
 *	None.
 *
 *--------------------------------------------------------------------------
 */

Tcl_Size
TclpGetPid(
    Tcl_Pid pid)		/* The HANDLE of the child process. */
{
    ProcInfo *infoPtr;

    PipeInit();

    Tcl_MutexLock(&pipeMutex);
    for (infoPtr = procList; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
	if (infoPtr->dwProcessId == (size_t)pid) {
	    Tcl_MutexUnlock(&pipeMutex);
	    return infoPtr->dwProcessId;
	}
    }
    Tcl_MutexUnlock(&pipeMutex);
    return TCL_INDEX_NONE;
}

int
TclpCreateProcess(
    Tcl_Interp *interp,		/* Interpreter in which to leave errors that
				 * occurred when creating the child process.
				 * Error messages from the child process
				 * itself are sent to errorFile. */
    Tcl_Size argc,			/* Number of arguments in following array. */
    const char **argv,		/* Array of argument strings. argv[0] contains
				 * the name of the executable converted to
				 * native format (using the
				 * Tcl_TranslateFileName call). Additional
				 * arguments have not been converted. */
    TclFile inputFile,		/* If non-NULL, gives the file to use as input
				 * for the child process. If inputFile file is

    return special;
}

static void
BuildCommandLine(
    const char *executable,	/* Full path of executable (including
				 * extension). Replacement for argv[0]. */
    Tcl_Size argc,			/* Number of arguments. */
    const char **argv,		/* Argument strings in UTF. */
    Tcl_DString *linePtr)	/* Initialized Tcl_DString that receives the
				 * command line (WCHAR). */
{
    const char *arg, *start, *special, *bspos;
    int quote = 0;
    Tcl_Size i;
    Tcl_DString ds;
    static const char specMetaChars[] = "&|^<>!()%";
				/* Characters to enclose in quotes if unpaired
				 * quote flag set. */
    static const char specMetaChars2[] = "%";
				/* Character to enclose in quotes in any case
				 * (regardless of unpaired-flag). */

Tcl_Channel
TclpCreateCommandChannel(
    TclFile readFile,		/* If non-null, gives the file for reading. */
    TclFile writeFile,		/* If non-null, gives the file for writing. */
    TclFile errorFile,		/* If non-null, gives the file where errors
				 * can be read. */
    Tcl_Size numPids,		/* The number of pids in the pid array. */
    Tcl_Pid *pidPtr)		/* An array of process identifiers. */
{
    char channelName[16 + TCL_INTEGER_SPACE];
    PipeInfo *infoPtr = (PipeInfo *)Tcl_Alloc(sizeof(PipeInfo));

    PipeInit();

TclGetAndDetachPids(
    Tcl_Interp *interp,
    Tcl_Channel chan)
{
    PipeInfo *pipePtr;
    const Tcl_ChannelType *chanTypePtr;
    Tcl_Obj *pidsObj;
    Tcl_Size i;

    /*
     * Punt if the channel is not a command channel.
     */

    chanTypePtr = Tcl_GetChannelType(chan);
    if (chanTypePtr != &pipeChannelType) {

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const *objv)	/* Argument strings. */
{
    Tcl_Channel chan;
    const Tcl_ChannelType *chanTypePtr;
    PipeInfo *pipePtr;
    Tcl_Size i;
    Tcl_Obj *resultPtr;

    if (objc > 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "?channelId?");
	return TCL_ERROR;
    }
    if (objc == 1) {

    TCL_UNUSED(Tcl_Obj *) /*extensionObj*/,
    Tcl_Obj *resultingNameObj)
{
    WCHAR name[MAX_PATH];
    char *namePtr;
    HANDLE handle;
    DWORD flags = FILE_ATTRIBUTE_TEMPORARY;
    Tcl_Size length;
    int counter, counter2;
    Tcl_DString buf;

    if (!resultingNameObj) {
	flags |= FILE_FLAG_DELETE_ON_CLOSE;
    }