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First step in creating Gis application on C#

Feb 12, 2012 at 1:49 PM

I try to create application with MapWindow on C#

I do all like in tutorial, but when i start to debug i have an error

" An unhandled exception of type 'System.IO.FileNotFoundException' occurred in WindowsFormsApplication7.exe
Additional information: Could not load file or assembly 'MapWindow, Version=, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Can not find the file specified."

What can i do? Help me, please ^)

Feb 13, 2012 at 8:54 AM

It is best to ask questions on the forum at
You've now started a discussion on the list for v4.9 ;)

Most likely your problem is that you did not properly installed the ocx.
You should use the ocx-only installer to install all dependencies:


Feb 13, 2012 at 9:47 AM

Paul, i reinstall mapwindow, now i can't find MapWindow.dll in any folder :(

Sorry for this post at this forum...

Feb 13, 2012 at 10:05 AM

MapWindow has several parts:

  • An executable (mapwindow.exe)
  • An ActiveX control (MapWinGIS.ocx)
  • And several plug-ins (.NET dlls)

If you refer to mapwindow.dll you might be using MapWindow6 which is not DotSpatial and has moved to a separate projects.

What installer did you install (version) and from which website?


Feb 13, 2012 at 10:40 AM

AT first i install and and ...) 

after your post i uninstall that all i install just // 

Feb 13, 2012 at 11:23 AM

Perhaps we should start with what you want to do and how you do it.

Can you do that on the other forum I've mentioned?



Feb 13, 2012 at 3:07 PM
Edited Feb 13, 2012 at 3:08 PM

Paul, sorry and thank you)

Now you can delete this post)