Introduction:

Uploading files to a server is a common requirement in web development projects. In this blog, we will explore how to implement file uploads using Classic ASP, providing step-by-step guidance and examples. Classic ASP is a server-side scripting language that is still widely used, and understanding how to handle file uploads with it is essential for web developers working with legacy systems.

Step 1: Setting up the project

Let’s setup the project first.

1. Create a new folder for storing the project files.

   

2. Open the folder and create a new asp file. I have named the file as uploadhelper.asp.

   

3. Paste the below code into uploadhelper.asp. This code is going to help in uploading the file. I found this code while searching for ways to create the uploader. I had to make a lot of changes to this file to make it to work. Now, it’s working. I have set the upload limit to close to 50 MB in the first line of code.
   

   <%Const MAX_UPLOAD_SIZE        = 500000000 '50 MBConst MSG_NO_DATA            = "Nothing to upload."Const MSG_EXCEEDED_MAX_SIZE  = "You exceeded the maximum upload size."Const MSG_BAD_REQUEST_METHOD = "Bad request method. Use the POST method."Const MSG_BAD_ENCTYPE        = "Bad encoding type. Use a ""multipart/form-data"" enctype."Const MSG_ZERO_LENGTH        = "Zero length request."':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::                                                                 :::':::  The file was modified by Shekhar Tarare (shekhartarare.com)    :::':::  on 20/06/2023. I have fixed issues with the file by making     :::':::  some changes to the code. It's working as of now. Feel free to ::: ':::  modify according to your needs.                                :::                                ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::Class UploadHelperPrivate m_RequestPrivate m_FilesPrivate m_ErrorPublic Property Get GetError    GetError = m_ErrorEnd PropertyPublic Property Get FileCount    FileCount = m_Files.CountEnd PropertyPublic Function File(index)    If m_Files.Exists(index) Then       Set File = m_Files(index)    Else         Set File = Nothing    End IfEnd FunctionPublic Default Property Get Item(strName)    If m_Request.Exists(strName) Then        Item = m_Request(strName)    Else          Item = ""    End IfEnd PropertyPrivate Sub Class_Initialize    Dim iBytesCount, strBinData    'first of all, get amount of uploaded bytes:    iBytesCount = Request.TotalBytes    'abort if nothing there:    If iBytesCount = 0 Then        m_Error = MSG_NO_DATA        Exit Sub    End If    'abort if exceeded maximum upload size:    If iBytesCount > MAX_UPLOAD_SIZE Then        m_Error = MSG_EXCEEDED_MAX_SIZE        Exit Sub    End If    If Request.ServerVariables("REQUEST_METHOD") = "POST" Then         Dim CT, PosB, Boundary, PosE        CT = Request.ServerVariables("HTTP_Content_Type")        If LCase(Left(CT, 19)) = "multipart/form-data" Then            PosB = InStr(LCase(CT), "boundary=")             If PosB > 0 Then Boundary = Mid(CT, PosB + 9)             PosB = InStr(LCase(CT), "boundary=")             If PosB > 0 Then                 PosB = InStr(Boundary, ",")                If PosB > 0 Then Boundary = Left(Boundary, PosB - 1)            End If            If iBytesCount > 0 And Boundary <> "" Then                 Boundary = "--" & Boundary                Dim Head, Binary                Binary = Request.BinaryRead(iBytesCount)                 'create private collections:                Set m_Request = Server.CreateObject("Scripting.Dictionary")                Set m_Files = Server.CreateObject("Scripting.Dictionary")                Call ParseRequest(Binary, Boundary)                Binary = Empty             Else                m_Error = MSG_ZERO_LENGTH                Exit Sub            End If        Else            m_Error = MSG_BAD_ENCTYPE            Exit Sub        End If    Else        m_Error = MSG_BAD_REQUEST_METHOD        Exit Sub    End IfEnd SubPrivate Sub Class_Terminate    Dim fileName    If IsObject(m_Request) Then        m_Request.RemoveAll        Set m_Request = Nothing    End If    If IsObject(m_Files) Then        For Each fileName In m_Files.Keys            Set m_Files(fileName)=Nothing        Next        m_Files.RemoveAll        Set m_Files = Nothing    End IfEnd SubPrivate Sub ParseRequest(Binary, Boundary)    Dim PosOpenBoundary, PosCloseBoundary, PosEndOfHeader, isLastBoundary    Boundary = StringToBinary(Boundary)    PosOpenBoundary = InStrB(Binary, Boundary)    PosCloseBoundary = InStrB(PosOpenBoundary + LenB(Boundary), Binary, Boundary, 0)    Dim HeaderContent, FieldContent, bFieldContent    Dim Content_Disposition, FormFieldName, SourceFileName, Content_Type    Dim TwoCharsAfterEndBoundary, n : n = 0    Do While (PosOpenBoundary > 0 And PosCloseBoundary > 0 And Not isLastBoundary)        PosEndOfHeader = InStrB(PosOpenBoundary + Len(Boundary), Binary, StringToBinary(vbCrLf + vbCrLf))        HeaderContent = MidB(Binary, PosOpenBoundary + LenB(Boundary) + 2, PosEndOfHeader - PosOpenBoundary - LenB(Boundary) - 2)        bFieldContent = MidB(Binary, (PosEndOfHeader + 4), PosCloseBoundary - (PosEndOfHeader + 4) - 2)        GetHeadFields BinaryToString(HeaderContent), Content_Disposition, FormFieldName, SourceFileName, Content_Type        Set objFileData = New FileData        objFileData.FileName = SourceFileName        objFileData.ContentType = Content_Type        objFileData.Contents = bFieldContent        objFileData.FormFieldName = FormFieldName        objFileData.ContentDisposition = Content_Disposition        Set m_Files(n) = objFileData        Set objFileData = Nothing        TwoCharsAfterEndBoundary = BinaryToString(MidB(Binary, PosCloseBoundary + LenB(Boundary), 2))        isLastBoundary = TwoCharsAfterEndBoundary = "--"        If Not isLastBoundary Then             PosOpenBoundary = PosCloseBoundary            PosCloseBoundary = InStrB(PosOpenBoundary + LenB(Boundary), Binary, Boundary)        End If        n = n + 1    LoopEnd SubPrivate Function GetHeadFields(ByVal Head, Content_Disposition, Name, FileName, Content_Type)    Content_Disposition = LTrim(SeparateField(Head, "content-disposition:", ";"))    Name = (SeparateField(Head, "name=", ";"))     If Left(Name, 1) = """" Then Name = Mid(Name, 2, Len(Name) - 2)    FileName = (SeparateField(Head, "filename=", ";"))     If Left(FileName, 1) = """" Then FileName = Mid(FileName, 2, Len(FileName) - 2)    Content_Type = LTrim(SeparateField(Head, "content-type:", ";"))End FunctionPrivate Function SeparateField(From, ByVal sStart, ByVal sEnd)    Dim PosB, PosE, sFrom    sFrom = LCase(From)    PosB = InStr(sFrom, sStart)    If PosB > 0 Then        PosB = PosB + Len(sStart)        PosE = InStr(PosB, sFrom, sEnd)        If PosE = 0 Then PosE = InStr(PosB, sFrom, vbCrLf)        If PosE = 0 Then PosE = Len(sFrom) + 1        SeparateField = Mid(From, PosB, PosE - PosB)    Else        SeparateField = Empty    End IfEnd FunctionPrivate Function BinaryToString(Binary)    dim cl1, cl2, cl3, pl1, pl2, pl3    Dim L    cl1 = 1    cl2 = 1    cl3 = 1    L = LenB(Binary)    Do While cl1<=L        pl3 = pl3 & Chr(AscB(MidB(Binary,cl1,1)))        cl1 = cl1 + 1        cl3 = cl3 + 1        if cl3>300 then            pl2 = pl2 & pl3            pl3 = ""            cl3 = 1            cl2 = cl2 + 1            if cl2>200 then                pl1 = pl1 & pl2                pl2 = ""                cl2 = 1            End If        End If    Loop    BinaryToString = pl1 & pl2 & pl3End FunctionPrivate Function StringToBinary(String)    Dim I, B    For I=1 to len(String)        B = B & ChrB(Asc(Mid(String,I,1)))    Next    StringToBinary = BEnd FunctionEnd ClassClass FileDataPrivate m_fileNamePrivate m_contentTypePrivate m_BinaryContentsPrivate m_AsciiContentsPrivate m_imageWidthPrivate m_imageHeightPrivate m_checkImagePrivate m_formFieldNamePrivate m_contentDispositionPublic Property Get FormFieldName    FormFieldName = m_formFieldNameEnd PropertyPublic Property Let FormFieldName(sFieldName)    m_formFieldName = sFieldNameEnd PropertyPublic Property Get ContentDisposition    ContentDisposition = m_contentDispositionEnd PropertyPublic Property Let ContentDisposition(sContentDisposition)    m_contentDisposition = sContentDispositionEnd PropertyPublic Property Get FileName    FileName = m_fileNameEnd PropertyPublic Property Get ContentType    ContentType = m_contentTypeEnd PropertyPublic Property Get ImageWidth    If m_checkImage=False Then Call CheckImageDimensions    ImageWidth = m_imageWidthEnd PropertyPublic Property Get ImageHeight    If m_checkImage=False Then Call CheckImageDimensions    ImageHeight = m_imageHeightEnd PropertyPublic Property Let FileName(ByVal strName)    strName = Replace(strName, "/", "\")    Dim arrTemp : arrTemp = Split(strName, "\")    m_fileName = arrTemp(UBound(arrTemp))End PropertyPublic Property Let CheckImage(blnCheck)    m_checkImage = blnCheckEnd PropertyPublic Property Let ContentType(strType)    m_contentType = strTypeEnd PropertyPublic Property Let Contents(strData)    m_BinaryContents = strData    m_AsciiContents = RSBinaryToString(m_BinaryContents)End PropertyPublic Property Get Size    Size = LenB(m_BinaryContents)End PropertyPrivate Sub CheckImageDimensions    Dim width, height, colors    Dim strType    '''If gfxSpex(BinaryToAscii(m_BinaryContents), width, height, colors, strType) = true then    If gfxSpex(m_AsciiContents, width, height, colors, strType) = true then        m_imageWidth = width        m_imageHeight = height    End If    m_checkImage = TrueEnd SubPrivate Sub Class_Initialize    m_imageWidth = -1    m_imageHeight = -1    m_checkImage = FalseEnd SubPublic Sub SaveToDisk(strFolderPath, ByRef strNewFileName)    Dim strPath, objFSO, objFile    Dim i, time1, time2    Dim objStream, strExtension    strPath = strFolderPath&"\"    If Len(strNewFileName)=0 Then        strPath = strPath & m_fileName    Else          strExtension = GetExtension(strNewFileName)        If Len(strExtension)=0 Then            strNewFileName = strNewFileName & "." & GetExtension(m_fileName)        End If        strPath = strPath & strNewFileName    End If    time1 = CDbl(Timer)    Set objFSO = Server.CreateObject("Scripting.FileSystemObject")    Set objFile = objFSO.CreateTextFile(strPath)    objFile.Write(m_AsciiContents)    '''For i=1 to LenB(m_BinaryContents)    '''    objFile.Write chr(AscB(MidB(m_BinaryContents, i, 1)))    '''Next              time2 = CDbl(Timer)    objFile.Close    Set objFile=Nothing    Set objFSO=NothingEnd SubPrivate Function GetExtension(strPath)    Dim arrTemp    arrTemp = Split(strPath, ".")    GetExtension = ""    If UBound(arrTemp)>0 Then        GetExtension = arrTemp(UBound(arrTemp))    End IfEnd FunctionPrivate Function RSBinaryToString(xBinary)    'Antonin Foller, http://www.motobit.com    'RSBinaryToString converts binary data (VT_UI1 | VT_ARRAY Or MultiByte string)    'to a string (BSTR) using ADO recordset    Dim Binary    'MultiByte data must be converted To VT_UI1 | VT_ARRAY first.    If vartype(xBinary)=8 Then Binary = MultiByteToBinary(xBinary) Else Binary = xBinary    Dim RS, LBinary    Const adLongVarChar = 201    Set RS = CreateObject("ADODB.Recordset")    LBinary = LenB(Binary)    If LBinary>0 Then        RS.Fields.Append "mBinary", adLongVarChar, LBinary        RS.Open        RS.AddNew        RS("mBinary").AppendChunk Binary         RS.Update        RSBinaryToString = RS("mBinary")    Else          RSBinaryToString = ""    End IfEnd FunctionFunction MultiByteToBinary(MultiByte)    '© 2000 Antonin Foller, http://www.motobit.com    ' MultiByteToBinary converts multibyte string To real binary data (VT_UI1 | VT_ARRAY)    ' Using recordset    Dim RS, LMultiByte, Binary    Const adLongVarBinary = 205    Set RS = CreateObject("ADODB.Recordset")    LMultiByte = LenB(MultiByte)    If LMultiByte>0 Then        RS.Fields.Append "mBinary", adLongVarBinary, LMultiByte        RS.Open        RS.AddNew        RS("mBinary").AppendChunk MultiByte & ChrB(0)        RS.Update        Binary = RS("mBinary").GetChunk(LMultiByte)    End If    MultiByteToBinary = BinaryEnd FunctionPrivate Function BinaryToAscii(strBinary)    Dim i, result    result = ""    For i=1 to LenB(strBinary)        result = result & chr(AscB(MidB(strBinary, i, 1)))     Next    BinaryToAscii = resultEnd Function':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::                                                             :::':::  This routine will attempt to identify any filespec passed  :::':::  as a graphic file (regardless of the extension). This will :::':::  work with BMP, GIF, JPG and PNG files.                     :::':::                                                             :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::          Based on ideas presented by David Crowell          :::':::                   (credit where due)                        :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::'::: blah blah blah blah blah blah blah blah blah blah blah blah :::'::: blah blah blah blah blah blah blah blah blah blah blah blah :::'::: blah blah     Copyright *c* MM,  Mike Shaffer     blah blah :::'::: bh blah      ALL RIGHTS RESERVED WORLDWIDE      blah blah :::'::: blah blah  Permission is granted to use this code blah blah :::'::: blah blah   in your projects, as long as this     blah blah :::'::: blah blah      copyright notice is included       blah blah :::'::: blah blah blah blah blah blah blah blah blah blah blah blah :::'::: blah blah blah blah blah blah blah blah blah blah blah blah :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::                                                             :::':::  This function gets a specified number of bytes from any    :::':::  file, starting at the offset (base 1)                      :::':::                                                             :::':::  Passed:                                                    :::':::       flnm        => Filespec of file to read               :::':::       offset      => Offset at which to start reading       :::':::       bytes       => How many bytes to read                 :::':::                                                             :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::Private Function GetBytes(flnm, offset, bytes)    Dim startPos    If offset=0 Then        startPos = 1    Else          startPos = offset    End If    if bytes = -1 then        ' Get All!        GetBytes = flnm    else        GetBytes = Mid(flnm, startPos, bytes)    end if'        Dim objFSO'        Dim objFTemp'        Dim objTextStream'        Dim lngSize'        '        Set objFSO = CreateObject("Scripting.FileSystemObject")'        '        ' First, we get the filesize'        Set objFTemp = objFSO.GetFile(flnm)'        lngSize = objFTemp.Size'        set objFTemp = nothing'        '        fsoForReading = 1'        Set objTextStream = objFSO.OpenTextFile(flnm, fsoForReading)'        '        if offset > 0 then'            strBuff = objTextStream.Read(offset - 1)'        end if'        '        if bytes = -1 then        ' Get All!'            GetBytes = objTextStream.Read(lngSize)  'ReadAll'        else'            GetBytes = objTextStream.Read(bytes)'        end if'        '        objTextStream.Close'        set objTextStream = nothing'        set objFSO = nothingEnd Function':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::                                                             :::':::  Functions to convert two bytes to a numeric value (long)   :::':::  (both little-endian and big-endian)                        :::':::                                                             :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::Private Function lngConvert(strTemp)    lngConvert = clng(asc(left(strTemp, 1)) + ((asc(right(strTemp, 1)) * 256)))end functionPrivate Function lngConvert2(strTemp)    lngConvert2 = clng(asc(right(strTemp, 1)) + ((asc(left(strTemp, 1)) * 256)))end function':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::':::                                                             :::':::  This function does most of the real work. It will attempt  :::':::  to read any file, regardless of the extension, and will    :::':::  identify if it is a graphical image.                       :::':::                                                             :::':::  Passed:                                                    :::':::       flnm        => Filespec of file to read               :::':::       width       => width of image                         :::':::       height      => height of image                        :::':::       depth       => color depth (in number of colors)      :::':::       strImageType=> type of image (e.g. GIF, BMP, etc.)    :::':::                                                             :::':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::function gfxSpex(flnm, width, height, depth, strImageType)    dim strPNG     dim strGIF    dim strBMP    dim strType    dim strBuff    dim lngSize    dim flgFound    dim strTarget    dim lngPos    dim ExitLoop    dim lngMarkerSize    strType = ""    strImageType = "(unknown)"    gfxSpex = False    strPNG = chr(137) & chr(80) & chr(78)    strGIF = "GIF"    strBMP = chr(66) & chr(77)    strType = GetBytes(flnm, 0, 3)    if strType = strGIF then                ' is GIF        strImageType = "GIF"        Width = lngConvert(GetBytes(flnm, 7, 2))        Height = lngConvert(GetBytes(flnm, 9, 2))        Depth = 2 ^ ((asc(GetBytes(flnm, 11, 1)) and 7) + 1)        gfxSpex = True    elseif left(strType, 2) = strBMP then        ' is BMP        strImageType = "BMP"        Width = lngConvert(GetBytes(flnm, 19, 2))        Height = lngConvert(GetBytes(flnm, 23, 2))        Depth = 2 ^ (asc(GetBytes(flnm, 29, 1)))        gfxSpex = True    elseif strType = strPNG then            ' Is PNG        strImageType = "PNG"        Width = lngConvert2(GetBytes(flnm, 19, 2))        Height = lngConvert2(GetBytes(flnm, 23, 2))        Depth = getBytes(flnm, 25, 2)        select case asc(right(Depth,1))            case 0                Depth = 2 ^ (asc(left(Depth, 1)))                gfxSpex = True            case 2                Depth = 2 ^ (asc(left(Depth, 1)) * 3)                gfxSpex = True            case 3                Depth = 2 ^ (asc(left(Depth, 1)))  '8                gfxSpex = True            case 4                Depth = 2 ^ (asc(left(Depth, 1)) * 2)                gfxSpex = True            case 6                Depth = 2 ^ (asc(left(Depth, 1)) * 4)                gfxSpex = True            case else                Depth = -1        end select    else        strBuff = GetBytes(flnm, 0, -1)        ' Get all bytes from file        lngSize = len(strBuff)        flgFound = 0        strTarget = chr(255) & chr(216) & chr(255)        flgFound = instr(strBuff, strTarget)        if flgFound = 0 then            exit function        end if        strImageType = "JPG"        lngPos = flgFound + 2        ExitLoop = false        do while ExitLoop = False and lngPos < lngSize            do while asc(mid(strBuff, lngPos, 1)) = 255 and lngPos < lngSize                lngPos = lngPos + 1            loop            if asc(mid(strBuff, lngPos, 1)) < 192 or asc(mid(strBuff, lngPos, 1)) > 195 then                lngMarkerSize = lngConvert2(mid(strBuff, lngPos + 1, 2))                lngPos = lngPos + lngMarkerSize  + 1            else                ExitLoop = True            end if        loop        if ExitLoop = False then            Width = -1            Height = -1            Depth = -1        else            Height = lngConvert2(mid(strBuff, lngPos + 4, 2))            Width = lngConvert2(mid(strBuff, lngPos + 6, 2))            Depth = 2 ^ (asc(mid(strBuff, lngPos + 8, 1)) * 8)            gfxSpex = True        end if    end ifEnd FunctionEnd Class%>

4. We need to create a form, which will be having the file selector and a button to upload the selected files. Create a new asp file, let’s call it as uploadhelpertest.asp.

   

5. Paste the below code into uploadhelperTest.asp.
   

   <!-- #include file="uploadhelper.asp" --><!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><title></title></head><body><form action="<%=Request.ServerVariables("SCRIPT_NAME")%>?cmd=upload" method="POST" enctype="multipart/form-data">  File: <input type="file" name="files[]" multiple>  <input type="submit" value="Upload"></form> <%If Request("cmd")="upload" ThenDim objUpload : Set objUpload = New UploadHelperIf objUpload.GetError <> "" Then    Response.Write("Warning: "&objUpload.GetError)Else      Response.Write("found "&objUpload.FileCount&" files...<br />")    Dim x : For x = 0 To objUpload.FileCount - 1        Response.Write("file name: "&objUpload.File(x).FileName&"<br />")        Response.Write("file type: "&objUpload.File(x).ContentType&"<br />")        Response.Write("file size: "&objUpload.File(x).Size&"<br />")        Response.Write("Saved at: D:\TestASPProject\Photos<br />")        'If want to convert the virtual path to physical path then use MapPath        'Call objUpload.File(x).SaveToDisk(Server.MapPath("/public"), "")        Call objUpload.File(x).SaveToDisk("D:\TestASPProject\Photos", "")        Response.Write("file saved successfully!")        Response.Write("<hr />")    Next            End IfEnd If%></body></html>

   Explanation of the above code:
   We are including the uploadhelper.asp first.
   We have a created a form with post action. It’s having an input of type file and a button of type submit.
   At the end, we are having server code. It’s looping over submitted file, It’s printing the details of the file and saving the file one by one to the folder “D:\TestASPProject\Photos”.

6. As we are trying to saving the files to the folder “D:\TestASPProject\Photos”. We need to make sure that the folder is present on the path else it will throw the error. Let’s create a new folder called Photos.

   

Step 2: Publishing the project to IIS

1. If you don’t have IIS installed in your machine. Please follow the tutorialhere, I have already written a blog to setup IIS.

2. Let’s setup our project in IIS. Open Internet Information Services (IIS) Manager.

   

3. Expand the directory. Right click Sites and select Add Website…

   

4. Enter the Site name. Select the project folder in Physical path input and set the bindings. I have selected the port 8080. Click OK to finish the setup.

   

Step 3: Enable Directory Browsing

1. We have successfully published the site. We just need to perform few configuration. Click on the website and under IIS, click on Directory Browsing. If it is not showing under IIS, then you might have not selected this while setting up the IIS.

   

2. Click on the Open Feature button on the right side.

   

3. Click on the Enable button to enable the directory browsing.

   

4. Now we can browse the files after running the project.

   

5. After enabling the Directory Browsing. A web.config file will be added to our project folder.

   

6. It will store the settings. When opening the file, it is having the below content.

   

7. You will get the below screen when running the website.

   

Step 4: Setup Upload Limit

In the uploadhelper.asp file, we have already setup the upload limit to close to 50 MB. But, that’s not enough, we need to setup the upload limit on IIS also to allow the operation. Otherwise, you will get many errors. Let’s setup those:

1. Click on website and select ASP. Click on Open Feature.

   

2. Expand Limits Properties. Set Maximum Requesting Entity Body Limit to 500000000 and click on Apply to save the settings.

   

3. We need to setup one more thing. Click your website and select the Request Filtering. Click on Open Feature.

   

4. Click on Edit Feature Settings…

   

5. Update the Maximum allowed content length (Bytes) to 500000000 and click OK to save the setting.

   

6. It will update the web.config.

   

Step 5: Testing the website

1. Click on Browse to open the website.

   

2. Click on uploadhelperTest.asp.

   

3. It will show the below screen.

   

4. Click on Choose Files. I am selecting 16 files having total of 38 MB.

1. Click on Upload. It has printed the file details and showing the message as five saved successfully!

   

2. Let’s check on our Photos folder. All the uploaded photos have been saved to this folder.

   

Note:If you want to modify the upload limit, then first make the change on the uploadhelper.asp file. In the first line, there is constant called MAX_UPLOAD_SIZE. Set that with whatever limit you want to set. Then, set the Maximum Requesting Entity Body Limit of the ASP Feature and Maximum allowed content length of the Request Filtering to the exact same limit.

Project Code is availablehere.

Conclusion:

Handling file uploads in Classic ASP is essential for developers working with legacy systems. In this blog, we learned how to implement a file uploader using Classic ASP, following a step-by-step approach. By setting up the environment, creating an HTML form, and writing server-side code, we were able to successfully handle file uploads and store them on the server. Remember to adjust the file upload folder and permissions as needed in your specific scenario.

File uploads are a critical feature in many web applications, and understanding how to implement them using Classic ASP allows you to work effectively with existing systems. With this knowledge, you can enhance user experiences by enabling seamless file transfers between clients and servers.