Error message when trying to connect.
 

Error Opening Database File: mscorlib
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
at System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver)
at System.Threading.CompressedStack.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup( TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state)
at System.Xml.XmlTextReaderImpl.OpenUrl()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at System.Xml.XmlReader.MoveToContent()
at System.Data.DataSet.ReadXml(XmlReader reader, Boolean denyResolving)
at System.Data.DataSet.ReadXml(String fileName)
at EQ2MAPUpdater.MainWindow.DownloadUpdates()The process cannot access the file 'C:\Program Files\EQ2MAP Updater\cache\updates_list.xml' because it is being used by another process.

received the same problem today, also on my wifes pc and also after restarting the computer ... so there shouldn't be sth. that's using the discribed file ... everything worked fine the past weeks and woe both didn't change anything so far, the prog isn't blocked by the firewall and we have the latest version ...

anyone an idea for this?

Which version of the updater are you guys using? The newest available version is 1.0.16

This is a known issue,but most times a restart solves it.
Try clear the cache and try again.
Im not sure if it's the program or somthing at your end :(
But this is a rare occasion, you are one of the unlucky ones :(

didn't do anything, but 2h later everything worked fine again ... strange thing, but solved by itself :p ... anyway, thx for your help guys ;)