EQ2Interface - EQ2map error

After i innstalled it this error pops up.

Unknown Error: mscorlib
at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
at WindowsApplication7.Form1.GetFileMD5(String FilePath)
at WindowsApplication7.Form1.DownloadExtras()
at WindowsApplication7.Form1.DoUpdates()
at WindowsApplication7.Form1.Timer3_Tick(Object sender, EventArgs e)
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.Callback(IntPtr hWnd, Int32 msg, IntPtr idEvent, IntPtr dwTime)Prosessen får ikke tilgang til filen C:\Programfiler\Sony\EverQuest II\UI\EQ2MAP\images\maps\map_qey_catacomb_epic02.dds fordi den brukes av en annen prosess.