#requires -version 2.0

<#

.SYNOPSIS

Changes the version information in the header of a SQL Server trace

.DESCRIPTION

Author: Gianluca Sartori - @spaghettidba

Create date: 2012-11-07

https://spaghettidba.com/2012/11/08/more-on-converting-trace-files/

.PARAMETER fileName

Trace file name

#>

## =============================================

## Author: Gianluca Sartori - @spaghettidba

## Create date: 2012-11-07

## Description: Changes the version information

## in the header of a SQL Server trace

## =============================================

$fileName = "somefile.trc"

# The version information we want to write: 0x0A = 10 = SQLServer 2008

[Byte[]] $versionData = 0x0A

# The offset of the version information in the file

$offset = 390

[System.IO.FileMode] $open = [System.IO.FileMode]::OpenOrCreate

$stream = New-Object System.IO.FileStream -ArgumentList $fileName, $open

$stream.Seek($offset, [System.IO.SeekOrigin]::Begin);

$stream.Write($versionData, 0, $versionData.Length);

$stream.Close()