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diff --git a/pd/portaudio/pa_dll_switch/portaudio.h b/pd/portaudio/pa_dll_switch/portaudio.h
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+#ifndef PORT_AUDIO_H
+#define PORT_AUDIO_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+/*
+ * PortAudio Portable Real-Time Audio Library
+ * PortAudio API Header File
+ * Latest version available at: http://www.audiomulch.com/portaudio/
+ *
+ * Copyright (c) 1999-2000 Ross Bencina and Phil Burk
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * Any person wishing to distribute modifications to the Software is
+ * requested to send the modifications to the original developer so that
+ * they can be incorporated into the canonical version.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+// added by zplane.developement in order to generate a DLL
+
+#if defined(PA_MME_EXPORTS) || defined(PA_DX_EXPORTS)
+#define DLL_API __declspec( dllexport )
+#elif defined(_LIB) || defined(_STATIC_LINK) || defined(_STATIC_APP)
+#define DLL_API
+#else
+#define DLL_API __declspec(dllexport)
+#endif
+
+
+typedef int PaError;
+typedef enum {
+    paNoError = 0,
+
+    paHostError = -10000,
+    paInvalidChannelCount,
+    paInvalidSampleRate,
+    paInvalidDeviceId,
+    paInvalidFlag,
+    paSampleFormatNotSupported,
+    paBadIODeviceCombination,
+    paInsufficientMemory,
+    paBufferTooBig,
+    paBufferTooSmall,
+    paNullCallback,
+    paBadStreamPtr,
+    paTimedOut,
+    paInternalError
+} PaErrorNum;
+
+/*
+ Pa_Initialize() is the library initialisation function - call this before
+ using the library.
+*/
+
+DLL_API PaError Pa_Initialize( void );
+
+/*
+ Pa_Terminate() is the library termination function - call this after
+ using the library.
+*/
+
+DLL_API PaError Pa_Terminate( void );
+
+/*
+ Return host specific error.
+ This can be called after receiving a paHostError.
+*/
+DLL_API long Pa_GetHostError( void );
+
+/*
+ Translate the error number into a human readable message.
+*/
+DLL_API const char *Pa_GetErrorText( PaError errnum );
+
+/*
+ Sample formats
+ 
+ These are formats used to pass sound data between the callback and the
+ stream. Each device has a "native" format which may be used when optimum
+ efficiency or control over conversion is required.
+ 
+ Formats marked "always available" are supported (emulated) by all devices.
+ 
+ The floating point representation uses +1.0 and -1.0 as the respective
+ maximum and minimum.
+ 
+*/
+
+typedef unsigned long PaSampleFormat;
+#define paFloat32      ((PaSampleFormat) (1<<0)) /*always available*/
+#define paInt16        ((PaSampleFormat) (1<<1)) /*always available*/
+#define paInt32        ((PaSampleFormat) (1<<2)) /*always available*/
+#define paInt24        ((PaSampleFormat) (1<<3))
+#define paPackedInt24  ((PaSampleFormat) (1<<4))
+#define paInt8         ((PaSampleFormat) (1<<5))
+#define paUInt8        ((PaSampleFormat) (1<<6))    /* unsigned 8 bit, 128 is "ground" */
+#define paCustomFormat ((PaSampleFormat) (1<<16))
+
+/*
+ Device enumeration mechanism.
+ 
+    Device ids range from 0 to Pa_CountDevices()-1.
+ 
+ Devices may support input, output or both. Device 0 is always the "default"
+ device and should support at least stereo in and out if that is available
+ on the taget platform _even_ if this involves kludging an input/output
+ device on platforms that usually separate input from output. Other platform
+ specific devices are specified by positive device ids.
+*/
+
+typedef int PaDeviceID;
+#define paNoDevice -1
+
+typedef struct
+{
+    int structVersion;
+    const char *name;
+    int maxInputChannels;
+    int maxOutputChannels;
+    /* Number of discrete rates, or -1 if range supported. */
+    int numSampleRates;
+    /* Array of supported sample rates, or {min,max} if range supported. */
+    const double *sampleRates;
+    PaSampleFormat nativeSampleFormats;
+}
+PaDeviceInfo;
+
+
+DLL_API int Pa_CountDevices();
+/*
+ Pa_GetDefaultInputDeviceID(), Pa_GetDefaultOutputDeviceID()
+ 
+ Return the default device ID or paNoDevice if there is no devices.
+ The result can be passed to Pa_OpenStream().
+ 
+ On the PC, the user can specify a default device by
+ setting an environment variable. For example, to use device #1.
+ 
+  set PA_RECOMMENDED_OUTPUT_DEVICE=1
+ 
+ The user should first determine the available device ID by using
+ the supplied application "pa_devs".
+*/
+DLL_API PaDeviceID Pa_GetDefaultInputDeviceID( void );
+DLL_API PaDeviceID Pa_GetDefaultOutputDeviceID( void );
+
+/*
+ PaTimestamp is used to represent a continuous sample clock with arbitrary
+ start time useful for syncronisation. The type is used in the outTime
+ argument to the callback function and the result of Pa_StreamTime()
+*/
+
+typedef double PaTimestamp;
+
+/*
+ Pa_GetDeviceInfo() returns a pointer to an immutable PaDeviceInfo structure
+ referring to the device specified by id.
+ If id is out of range the function returns NULL.
+ 
+ The returned structure is owned by the PortAudio implementation and must
+ not be manipulated or freed. The pointer is guaranteed to be valid until
+ between calls to Pa_Initialize() and Pa_Terminate().
+*/
+
+DLL_API const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceID id );
+
+/*
+ PortAudioCallback is implemented by clients of the portable audio api.
+ 
+ inputBuffer and outputBuffer are arrays of interleaved samples,
+ the format, packing and number of channels used by the buffers are
+ determined by parameters to Pa_OpenStream() (see below).
+ 
+ framesPerBuffer is the number of sample frames to be processed by the callback.
+ 
+ outTime is the time in samples when the buffer(s) processed by
+ this callback will begin being played at the audio output.
+ See also Pa_StreamTime()
+ 
+ userData is the value of a user supplied pointer passed to Pa_OpenStream()
+ intended for storing synthesis data etc.
+ 
+ return value:
+ The callback can return a nonzero value to stop the stream. This may be
+ useful in applications such as soundfile players where a specific duration
+ of output is required. However, it is not necessary to utilise this mechanism
+ as StopStream() will also terminate the stream. A callback returning a
+ nonzero value must fill the entire outputBuffer.
+ 
+ NOTE: None of the other stream functions may be called from within the
+ callback function except for Pa_GetCPULoad().
+ 
+*/
+
+typedef int (PortAudioCallback)(
+    void *inputBuffer, void *outputBuffer,
+    unsigned long framesPerBuffer,
+    PaTimestamp outTime, void *userData );
+
+
+/*
+ Stream flags
+ 
+ These flags may be supplied (ored together) in the streamFlags argument to
+ the Pa_OpenStream() function.
+ 
+ [ suggestions? ]
+*/
+
+#define   paNoFlag      (0)
+#define   paClipOff     (1<<0)   /* disable defult clipping of out of range samples */
+#define   paDitherOff   (1<<1)   /* disable default dithering */
+#define   paPlatformSpecificFlags (0x00010000)
+typedef   unsigned long PaStreamFlags;
+
+/*
+ A single PortAudioStream provides multiple channels of real-time
+ input and output audio streaming to a client application.
+ Pointers to PortAudioStream objects are passed between PortAudio functions.
+*/
+
+typedef void PortAudioStream;
+#define PaStream PortAudioStream
+
+/*
+ Pa_OpenStream() opens a stream for either input, output or both.
+ 
+ stream is the address of a PortAudioStream pointer which will receive
+ a pointer to the newly opened stream.
+ 
+ inputDevice is the id of the device used for input (see PaDeviceID above.)
+ inputDevice may be paNoDevice to indicate that an input device is not required.
+ 
+ numInputChannels is the number of channels of sound to be delivered to the
+ callback. It can range from 1 to the value of maxInputChannels in the
+ device input record for the device specified in the inputDevice parameter.
+ If inputDevice is paNoDevice numInputChannels is ignored.
+ 
+ inputSampleFormat is the format of inputBuffer provided to the callback
+ function. inputSampleFormat may be any of the formats described by the
+ PaSampleFormat enumeration (see above). PortAudio guarantees support for
+ the sound devices native formats (nativeSampleFormats in the device info
+ record) and additionally 16 and 32 bit integer and 32 bit floating point
+ formats. Support for other formats is implementation defined.
+ 
+ inputDriverInfo is a pointer to an optional driver specific data structure
+ containing additional information for device setup or stream processing.
+ inputDriverInfo is never required for correct operation. If not used
+ inputDriverInfo should be NULL.
+ 
+ outputDevice is the id of the device used for output (see PaDeviceID above.)
+ outputDevice may be paNoDevice to indicate that an output device is not required.
+ 
+ numOutputChannels is the number of channels of sound to be supplied by the
+ callback. See the definition of numInputChannels above for more details.
+ 
+ outputSampleFormat is the sample format of the outputBuffer filled by the
+ callback function. See the definition of inputSampleFormat above for more
+ details.
+ 
+ outputDriverInfo is a pointer to an optional driver specific data structure
+ containing additional information for device setup or stream processing.
+ outputDriverInfo is never required for correct operation. If not used
+ outputDriverInfo should be NULL.
+ 
+ sampleRate is the desired sampleRate for input and output
+ 
+ framesPerBuffer is the length in sample frames of all internal sample buffers
+ used for communication with platform specific audio routines. Wherever
+ possible this corresponds to the framesPerBuffer parameter passed to the
+ callback function.
+ 
+ numberOfBuffers is the number of buffers used for multibuffered
+ communication with the platform specific audio routines. This parameter is
+ provided only as a guide - and does not imply that an implementation must
+ use multibuffered i/o when reliable double buffering is available (such as
+ SndPlayDoubleBuffer() on the Macintosh.)
+ 
+ streamFlags may contain a combination of flags ORed together.
+ These flags modify the behavior of the
+ streaming process. Some flags may only be relevant to certain buffer formats.
+ 
+ callback is a pointer to a client supplied function that is responsible
+ for processing and filling input and output buffers (see above for details.)
+ 
+ userData is a client supplied pointer which is passed to the callback
+ function. It could for example, contain a pointer to instance data necessary
+ for processing the audio buffers.
+ 
+ return value:
+ Apon success Pa_OpenStream() returns PaNoError and places a pointer to a
+ valid PortAudioStream in the stream argument. The stream is inactive (stopped).
+ If a call to Pa_OpenStream() fails a nonzero error code is returned (see
+ PAError above) and the value of stream is invalid.
+ 
+*/
+
+DLL_API PaError Pa_OpenStream( PortAudioStream** stream,
+                               PaDeviceID inputDevice,
+                               int numInputChannels,
+                               PaSampleFormat inputSampleFormat,
+                               void *inputDriverInfo,
+                               PaDeviceID outputDevice,
+                               int numOutputChannels,
+                               PaSampleFormat outputSampleFormat,
+                               void *outputDriverInfo,
+                               double sampleRate,
+                               unsigned long framesPerBuffer,
+                               unsigned long numberOfBuffers,
+                               PaStreamFlags streamFlags,
+                               PortAudioCallback *callback,
+                               void *userData );
+
+
+/*
+ Pa_OpenDefaultStream() is a simplified version of Pa_OpenStream() that
+ opens the default input and/or ouput devices. Most parameters have
+ identical meaning to their Pa_OpenStream() counterparts, with the following
+ exceptions:
+ 
+ If either numInputChannels or numOutputChannels is 0 the respective device
+ is not opened (same as passing paNoDevice in the device arguments to Pa_OpenStream() )
+ 
+ sampleFormat applies to both the input and output buffers.
+*/
+
+DLL_API PaError Pa_OpenDefaultStream( PortAudioStream** stream,
+                                      int numInputChannels,
+                                      int numOutputChannels,
+                                      PaSampleFormat sampleFormat,
+                                      double sampleRate,
+                                      unsigned long framesPerBuffer,
+                                      unsigned long numberOfBuffers,
+                                      PortAudioCallback *callback,
+                                      void *userData );
+
+/*
+ Pa_CloseStream() closes an audio stream, flushing any pending buffers.
+*/
+
+DLL_API PaError Pa_CloseStream( PortAudioStream* );
+
+/*
+  Pa_StartStream() and Pa_StopStream() begin and terminate audio processing.
+ When Pa_StopStream() returns, all pending audio buffers have been played.
+    Pa_AbortStream() stops playing immediately without waiting for pending
+    buffers to complete.
+*/
+
+DLL_API PaError Pa_StartStream( PortAudioStream *stream );
+
+DLL_API PaError Pa_StopStream( PortAudioStream *stream );
+
+DLL_API PaError Pa_AbortStream( PortAudioStream *stream );
+
+/*
+ Pa_StreamActive() returns one when the stream is playing audio,
+ zero when not playing, or a negative error number if the
+ stream is invalid.
+ The stream is active between calls to Pa_StartStream() and Pa_StopStream(),
+ but may also become inactive if the callback returns a non-zero value.
+ In the latter case, the stream is considered inactive after the last
+ buffer has finished playing.
+*/
+
+DLL_API PaError Pa_StreamActive( PortAudioStream *stream );
+
+/*
+ Pa_StreamTime() returns the current output time for the stream in samples.
+ This time may be used as a time reference (for example syncronising audio to
+ MIDI).
+*/
+
+DLL_API PaTimestamp Pa_StreamTime( PortAudioStream *stream );
+
+/*
+ The "CPU Load" is a fraction of total CPU time consumed by the
+ stream's audio processing.
+ A value of 0.5 would imply that PortAudio and the sound generating
+ callback was consuming roughly 50% of the available CPU time.
+ This function may be called from the callback function or the application.
+*/
+DLL_API double Pa_GetCPULoad( PortAudioStream* stream );
+
+/*
+ Use Pa_GetMinNumBuffers() to determine minimum number of buffers required for
+ the current host based on minimum latency. 
+ On the PC, for the DirectSound implementation, latency can be optionally set
+ by user by setting an environment variable.
+ For example, to set latency to 200 msec, put:
+ 
+    set PA_MIN_LATENCY_MSEC=200
+ 
+ in the AUTOEXEC.BAT file and reboot.
+ If the environment variable is not set, then the latency will be determined
+ based on the OS. Windows NT has higher latency than Win95.
+*/
+
+DLL_API int Pa_GetMinNumBuffers( int framesPerBuffer, double sampleRate );
+
+/*
+ Sleep for at least 'msec' milliseconds.
+ You may sleep longer than the requested time so don't rely
+ on this for accurate musical timing.
+*/
+DLL_API void Pa_Sleep( long msec );
+
+/*
+ Return size in bytes of a single sample in a given PaSampleFormat
+ or paSampleFormatNotSupported. 
+*/
+DLL_API PaError Pa_GetSampleSize( PaSampleFormat format );
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* PORT_AUDIO_H */