Need to migrate forms to another URL? But not sure how to update many data connections? Try the script below.
This PowerShell will extract XSN contents to a folder, execute string search replace, and “package” back into CAB format with XSN extension. A simple way to migrate InfoPath forms to another DNS name for scenarios like AAM Alternate Access Mapping redirection and SharePoint major version upgrade (2007 > 2010 > 2013).
Enjoy!

NOTE – Requires CABARC.EXE http://stackoverflow.com/questions/3361928/where-can-i-get-the-cabarc-utility
InfoPath_UpdateDataConnetions.ps1
# Update InfoPath form URLs by extracting CAB and performing search replace Param( [string]$xsnFile ) Write-Host "Prepare folders..." md c:\InfoPath\before md c:\InfoPath\temp md c:\InfoPath\after Write-Host "Clean temp..." Remove-ChildItem c:\InfoPath\temp\*.* -Recurse Write-Host "Extract XSN... $xsnFile" cabarc x "c:\InfoPath\before\$xsnFile" *.* c:\InfoPath\temp\ Write-Host "Replace URL..." $txt = Get-Content c:\InfoPath\temp\Manifest.xsf $txt |% {$_ -replace "//sharepoint/" "//sharepnt07/"} | Out-File -FilePath "c:\InfoPath\temp\Manifest.xsf" -Encoding UTF8 -Force Write-Host "package XSN..." cabarc n "c:\InfoPath\after\$xsnFile" c:\InfoPath\temp\*.* Write-Host "DONE"