LogFile - Sample of values on begin of line.

  'This is only sample. 
  'There is no good idea to change log structure inside of one file.
  Dim LogFile 

  'Create LogFile object
  Set LogFile = CreateObject("ScriptUtils.LogFile")
  LogFile.TemplateFileName = "D:\LogFiles\LG%y%m%d.Log"

  'Default is datetime field
  LogFile.Log

  'Add some extra values to the log
  LogFile.LineBegin = blDateTime + blmilisecond + blProcessID + blThreadID
  LogFile.Log

  Dim I, X
  For I = 1 To 100000
    X = I * 5
  Next
  'Add microsecond and
  LogFile.LineBegin = blDateTime  + blmicrosecond + blProcessKernelTime + blProcessUserTime
  LogFile.Log

Output (contents of D:\LogFiles\LG001213.Log file)
#Software: PSTRUH ScriptUtilities Log file
#Version: 1.0
#Date: 2000-12-13+14:24:01
#Fields: datetime
2000-12-13+14:24:01
2000-12-13+14:24:01 0 1004 756
2000-12-13+14:24:01 184613 0 187

ScriptUtils.LogFile

Hi-performance text file logging for ASP and ASP.Net, VBScript, VBA, VB5/6, VB and C# applications. Lets you create daily/weekly/monthly log files with variable number of logged values and extra timing and performance info.
     LogFile is a COM class specially designed as a free-threaded, hi-performance logging object in Application scope of ASP/ASP.Net pages. It also works with other script engines in VB Script and JScript (ASP, ASP.Net, WSH, CHM, HTA), VB Net, Visual basic (VBA - VB 5, VB 6, Word, Excel, Access, …), C#, J#, C++, ASP, ASP.Net, Delphi and with T-SQL OLE functions - see Use ByteArray object article. You can also use the object in other programming environments with COM support, such is PowerBuilder.
     Source code for LogFile is available within distribution license, please see License page for ASP file upload and ScriptUtilities.

ScriptUtils

Huge ASP upload is easy to use, hi-performance ASP file upload component with progress bar indicator. This component lets you upload multiple files with size up to 4GB to a disk or a database along with another form fields. Huge ASP file upload is a most featured upload component on a market with competitive price and a great performance . The software has also a free version of asp upload with progress, called Pure asp upload , written in plain VBS, without components (so you do not need to install anything on server). This installation package contains also ScriptUtilities library. Script Utilities lets you create hi-performance log files , works with binary data , you can download multiple files with zip/arj compression, work with INI files and much more with the ASP utility.