Run Watin tests from PowerShell

gistfile1.ps1

$checkoutFolder = "%teamcity.build.workingDir%"
$targetDll = "$checkoutFolder\bin\Debug\%DLL containing tests here%"
$fixture = "%your namespace here%"
$resultXml = "$checkoutFolder\TestResult.xml"
$resultHtml = "$checkoutFolder\TestResults"

rm $resultXml -Force -Verbose
rm $resultHtml -Force -Verbose -Recurse

$buildOptions = "/xml:$resultXml /fixture:$fixture"
$command = 'nunit-console "$targetDll" ' + $buildOptions 
Invoke-Expression $command

& nunit-results $resultXml $resultHtml