see the change in the code below

>Albert,
>
>I tried
>
>?URLDecode4('hello')
>
>in win 98 SE, IE 6, VFP 7 SP1 and this returns empty string.
>Why ?
>
>>This is even faster, note the first comment.
>>
>>

>>Function URLDecode4
>>
>>	***
>>	*** If tcInput contains "%00", the string will be terminated at that
>>	*** character.
>>	***
>>
>>	*** URLDecodes a text string:
>>	* Replaces %hh tokens with ascii characters
>>
>>	*** Input: tcInput - Text string to decode
>>	*** Return: Decoded string
>>	* Author: Albert
>>
>>	Lparameter tcInput
>>
>>	tcInput = Chrtran(tcInput, "+", " ")
>>
>>	*!*	UrlUnescape
>>	*!*	Converts escape sequences back into ordinary characters.
>>
>>	*!*	HRESULT UrlUnescape(
>>	*!*	  LPTSTR pszURL,
>>	*!*	  LPTSTR pszUnescaped,
>>	*!*	  LPDWORD pcchUnescaped,
>>	*!*	  DWORD dwFlags
>>	*!*	);
>>
>>	*!*	Parameters
>>	*!*	pszURL - [in/out] Pointer to a NULL-terminated string with
>>	*!*	    the URL. If dwFlags is set to URL_UNESCAPE_INPLACE, the
>>	*!*	    converted string is returned through this parameter.
>>	*!*	pszUnescaped - [out] Pointer to a buffer that will receive a
>>	*!*	    NULL-terminated string containing the unescaped version
>>	*!*	    of pszURL. If URL_UNESCAPE_INPLACE is set in dwFlags,
>>	*!*	    this parameter is ignored.
>>	*!*	pcchUnescaped - [in/out] Number of characters in the buffer
>>	*!*	    pointed to by pcchUnescaped. On entry, the value
>>	*!*	    pcchUnescaped points to is set to the size of the
>>	*!*	    buffer. If the function returns a success code, the
>>	*!*	    value that pcchUnescaped points to is set to the number
>>	*!*	    of characters written to that buffer, not counting the
>>	*!*	    terminating NULL character. If an E_POINTER error code
>>	*!*	    is returned, the buffer was too small, and the value
>>	*!*	    pcchUnescaped points to is set to the required number of
>>	*!*	    characters that the buffer must be able to contain. If
>>	*!*	    any other errors are returned, the value that
>>	*!*	    pcchUnescaped points to is undefined.
>>	*!*	dwFlags - [in] Flags that control which characters are
>>	*!*	    unescaped. It can be a combination of the following
>>	*!*	    flags. Flag Description
>>	*!*		URL_DONT_UNESCAPE_EXTRA_INFO Don't convert the #
>>	*!*	            or ? character, or any characters following them
>>	*!*	            in the string.
>>	*!*		URL_UNESCAPE_INPLACE Use pszURL to return the
>>	*!*	            converted string instead of pszUnescaped.
>>
>>	*!*	Return Values
>>	*!*	Returns an OLE success code if successful. If the
>>	*!*	URL_UNESCAPE_INPLACE flag is not set, the value pointed to
>>	*!*	by pcchUnescaped will be set to the number of characters in
>>	*!*	the output buffer pointed to by pszUnescaped. Returns
>>	*!*	E_POINTER if the URL_UNESCAPE_INPLACE flag is not set and
>>	*!*	the output buffer is too small. The pcchUnescaped parameter
>>	*!*	will be set to the required buffer size. Otherwise, returns
>>	*!*	an OLE error value.
>>
>>	*!*	Remarks
>>	*!*	An escape sequence has the form "%xy".
>>
>>	*!*	Requirements
>>	*!*	  Version 5.00 and later of Shlwapi.dll
>>
>>	*!*	  Windows NT/2000: Requires Windows 2000 (or Windows NT 4.0
>>	*!*	      with Internet Explorer 5.0 or later).
>>	*!*	  Windows 95/98: Requires Windows 98 (or Windows 95 with
>>	*!*	      Internet Explorer 5.0 or later).
>>	*!*	  Header: Declared in shlwapi.h.
>>	*!*	  Import Library: shlwapi.lib.
>>
>>	Declare Integer UrlUnescape In shlwapi.Dll As UrlUnescape ;
>>		string pszURL, ;
>>		string @ pszUnescaped, ;
>>		integer @ pcchUnescaped, ;
>>		integer dwFlags
>>
>>	Local lcOutput, lnLength
>>*	lnLength = Len(tcInput)
	lnLength = Len(tcInput) + 1
>>	lcOutput = Replicate(Chr(0), lnLength)
>>
>>	If 0 = UrlUnescape(tcInput, @lcOutput, @lnLength, 0)
>>		lcOutput = Left(lcOutput, lnLength)
>>		Return lcOutput
>>	Else
>>		Return ""
>>	Endif
>>