session variable restore special characters visual basic

Hello I'm using session variables passed in a URL like this:

http://xxx.xxx.xxx.xxx/file.asp?var=básicas

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   like you see has spanish accents now when you navigate the browser chages to this:

http://xxx.xxx.xxx.xxx/file.asp?var=b%C3%A1sicas

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Now using in visual basic to query the string:

var = Request.QueryString("var")
Response.Write(var)

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I have this results:

"básicas"

like you see is not "básicas"

   How can I query the string to have full "básicas" inside visual basic to put If then else conditions and more things?

   Of course we just have access real to the resulting variable session because we can't modify the source that send that links with that session variables because of that we just depend on destination visual basic query process. What code is needed to place in the visual basic script with examples?
Thank you
coerraceAsked:
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GaryCommented:
To be clear this encoded url parameters and nothing to do with session variables

What is your code that is decoding the url param because %C3%A1 correctly translates to á
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Big MontySenior Web Developer / CEO of ExchangeTree.org Commented:
The url is being encoded, unfortunately there is no built in decode function, so you will have to use a custom function:

' URL decode to retrieve the original value

Function URLDecode(sConvert)
    Dim aSplit
    Dim sOutput
    Dim I
    If IsNull(sConvert) Then
       URLDecode = ""
       Exit Function
    End If

    ' convert all pluses to spaces
    sOutput = REPLACE(sConvert, "+", " ")

    ' next convert %hexdigits to the character
    aSplit = Split(sOutput, "%")

    If IsArray(aSplit) Then
      sOutput = aSplit(0)
      For I = 0 to UBound(aSplit) - 1
        sOutput = sOutput & _
          Chr("&H" & Left(aSplit(i + 1), 2)) &_
          Right(aSplit(i + 1), Len(aSplit(i + 1)) - 2)
      Next
    End If

    URLDecode = sOutput
End Function

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coerraceAuthor Commented:
Thank you for answer i used your function like this:

strPath = Server.URLEncode(raceplan)
Response.write(strPath)

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And i have like result:

"b%C3%A1sicas" without quotes

And if there are spaces fill with "+" without quotes

Not give real result how can we use that in one if then else condition? or why not give the real result.
Thank you
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Big MontySenior Web Developer / CEO of ExchangeTree.org Commented:
You want to use the decode function I posted
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coerraceAuthor Commented:
I'm using your function like:

strPath = URLDecode(var)

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and the spaces are ok now but the special character like "á" (without quotes) in other words i have this result:

"básicas" without quotes

   In long names with spaces the spaces are fixed like i said you but not other characters like I mentioned. Any solution for special characters?
Thank you
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Scott Fell, EE MVEDeveloper & EE ModeratorCommented:
I wonder if you have set your code page

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>

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and some form of
 <meta charset="utf-8">

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Ray's article is for the PHP topic, but relevant for ASP as well
http://www.experts-exchange.com/Programming/Languages/Scripting/PHP/A_11880-Unicode-PHP-and-Character-Collisions.html
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coerraceAuthor Commented:
Thank you
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