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								| IsValidURL Determines if a specified string is a valid URL. | VB4-32,5,6 Declare Function IsValidURL Lib "URLMON.DLL" (ByVal pbc As Long, ByVal szURL As String, ByVal dwReserved As Long) As Long
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 | · pBC [in] Pointer to the IBindCtx interface. This parameter is currently ignored. It should be set to NULL.
 
 · szURL
 [in] Pointer to a string value that contains the full URL to be checked.
 
 · dwReserved
 [in] Reserved. Must be set to 0.
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 | Returns one of the following values. S_OK
 The szURL parameter contains a valid URL.
 S_FALSE
 The szURL parameter does not contain a valid URL.
 E_INVALIDARG
 One of the parameters is invalid.
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