How do I fix an “Invalid license data. Reinstall is required.” error in Visual C# 2010 Express?

Question

I\'ve tried to install Visual C# 2010 Express edition onto my PC, but whenever I try to run it, I get a error message.

Invalid license data. Reinstall

Answer 1

If you're here from Google and are experiencing this issue with GFI MailEssentials's config export tool, check to make sure you aren't trying to open WebMon.SettingsImporterTool.exe.xml instead of WebMon.SettingsImporterTool.exe

If you have "hide common file extensions" enabled, you will see the .exe but not the .xml