Eu consegui resolver (com ajuda) o problema de renomear arquivo no sistema de upload que uso. Veja os códigos: formulario.html <HTML>
<HEAD>
<TITLE>Formulário de Upload</TITLE>
</HEAD>
<BODY>
<div align="center"><B>Envie sua foto!</b>
</div>
<FORM METHOD="Post" ENCTYPE="multipart/form-data" ACTION="outputFile.asp">
<div align="center">Arquivo:
<INPUT TYPE="file" NAME="blob">
<BR>
<INPUT NAME="Enter" TYPE="submit" value="Enviar">
</div>
</FORM>
</BODY>
</HTML>
upload.asp
<%
Sub BuildUploadRequest(RequestBin)
'Get the boundary
PosBeg = 1
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
boundary = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
boundaryPos = InstrB(1,RequestBin,boundary)
'Get all data inside the boundaries
Do until (boundaryPos=InstrB(RequestBin,boundary & getByteString("--")))
'Members variable of objects are put in a dictionary object
Dim UploadControl
Set UploadControl = CreateObject("Scripting.Dictionary")
'Get an object name
Pos = InstrB(BoundaryPos,RequestBin,getByteString("Content-Disposition"))
Pos = InstrB(Pos,RequestBin,getByteString("name="))
PosBeg = Pos+6
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(34)))
Name = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
PosFile = InstrB(BoundaryPos,RequestBin,getByteString("filename="))
PosBound = InstrB(PosEnd,RequestBin,boundary)
'Test if object is of file type
If PosFile<>0 AND (PosFile<PosBound) Then
'Get Filename, content-type and content of file
PosBeg = PosFile + 10
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(34)))
FileName = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
filename = hour(time) & minute(time) & day(date) & month(date) & year(date) & filename
'Add filename to dictionary object
UploadControl.Add "FileName", FileName
Pos = InstrB(PosEnd,RequestBin,getByteString("Content-Type:"))
PosBeg = Pos+14
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
'Add content-type to dictionary object
ContentType = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
UploadControl.Add "ContentType",ContentType
'Get content of object
PosBeg = PosEnd+4
PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
Value = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
Else
'Get content of object
Pos = InstrB(Pos,RequestBin,getByteString(chr(13)))
PosBeg = Pos+4
PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
Value = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
End If
'Add content to dictionary object
UploadControl.Add "Value" , Value
'Add dictionary object to main dictionary
UploadRequest.Add name, UploadControl
'Loop to next object
BoundaryPos=InstrB(BoundaryPos+LenB(boundary),RequestBin,boundary)
Loop
End Sub
'String to byte string conversion
Function getByteString(StringStr)
For i = 1 to Len(StringStr)
char = Mid(StringStr,i,1)
getByteString = getByteString & chrB(AscB(char))
Next
End Function
'Byte string to string conversion
Function getString(StringBin)
getString =""
For intCount = 1 to LenB(StringBin)
getString = getString & chr(AscB(MidB(StringBin,intCount,1)))
Next
End Function
%>
outputfile.asp
<%
Response.Expires=0
Response.Buffer = TRUE
Response.Clear
'Response.BinaryWrite(Request.BinaryRead(Request.TotalBytes))
byteCount = Request.TotalBytes
'Response.BinaryWrite(Request.BinaryRead(varByteCount))
RequestBin = Request.BinaryRead(byteCount)
Dim UploadRequest
Set UploadRequest = CreateObject("Scripting.Dictionary")
BuildUploadRequest RequestBin
contentType = UploadRequest.Item("blob").Item("ContentType")
filepathname = UploadRequest.Item("blob").Item("FileName")
filename = Right(filepathname,Len(filepathname)-InstrRev(filepathname,"\"))
value = UploadRequest.Item("blob").Item("Value")
'Create FileSytemObject Component
Set ScriptObject = Server.CreateObject("Scripting.FileSystemObject")
'Create and Write to a File
pathEnd = Len(Server.mappath(Request.ServerVariables("PATH_INFO")))-14
Set MyFile = ScriptObject.CreateTextFile(Left(Server.mappath(Request.ServerVariables("PATH_INFO")),pathEnd)&filename)
For i = 1 to LenB(value)
MyFile.Write chr(AscB(MidB(value,i,1)))
Next
MyFile.Close
%>
<p align="center"><b>Uploaded file : </b><%=filename%><BR>
<img src="<%=filename%>">
<!--#include file="upload.asp"-->
</p> O que foi inserido no upload.asp, pra funcionar: filename = hour(time) & minute(time) & day(date) & month(date) & year(date) & filename
