Powershell IIS 6.0 Httpredirect

[ThundaGlosh]

I am running into an issue while using powershell to configure my IIS server for a web page update. I set the httpredirect before I copy over the files for the update. The problem is when you reference the httpredirect property, it creates a property key in the metabase. You then cannot reset the virtual directory to read from its default directory "inetpub\

http://wwwroot\source

files" because the httpredirect key is still there. Setting the key to null string dosent work. I dont want to open the metabase for editing that is way to risky. Does anybody have code to remove a property from the a virtual directory? Here is my code
Write-Host "Re-Directing Virtual Directory "$VirDirName" on "$sIISName
add-content $logfile "Re-Directing Virtual Directory $VirDirName on $sIISName"
get-date|add-content $logfile
Write-Host ""
$oDE = New-Object System.DirectoryServices.DirectoryEntry("IIS:\\"+$sIISName+"\W3SVC\1\Root\"+$virdirname)
$ode.httpredirect.set_value("

http://ostest/msportal2/")

$oVirDir.setinfo()
#========================================Copying over updated files===============================================
$ErrMsg="An Unexpected Error has Occurred."
Write-Host "Copying Updated files to "+$sIISName ". Please wait."
add-content $logfile "Copying Updated files to $sIISName. Please wait."
Write-Host
Copy-Item $sSrcPath\* $sdestpath\$virDirName -recurse -force
Write-Host "Copy Complete"
add-content $logfile "Copy Complete"
get-date|add-content $logfile
Write-Host
#=======================================Resetting the Redirect ===================================================
$ode.httpredirect.set_value("")
$oVirDir.setinfo()