Pima County Department of Transportation

Geographic Information Services Division

Uninstalling the Autodesk MapGuide Viewer

There's generally no need or reason to uninstall the MapGuide Viewer once you have it installed. However, if you are having installation problems, it may be a good idea to try to uninstall a previous version of the MapGuide Viewer.

There are three versions of the MapGuide Viewer:

• Windows Internet Explorer users use the MapGuide Viewer ActiveX control.
• Netscape 4.x (and perhaps some others) use the MapGuide Viewer plugin.
• Most other users use the Java Edition MapGuide Viewer.

Uninstalling the MapGuide Viewer ActiveX control (Internet Explorer)

There are three methods that should be tried in sequence until it's proven that the Viewer has been removed.

1. Using Add/Remove Programs
   • Click Start, point to Settings, click Control Panel, double-click Add/Remove Programs, and then click the Change or Remove Programs button or the Install/Uninstall tab (whichever you see for your version of Windows).
   • If "Autodesk MapGuide(R) Viewer ActiveX Control" appears in the list of installed programs, click on it, click Add/Remove, and then follow the instructions on the screen. If "Autodesk MapGuide(R) MapGuide Viewer ActiveX Control" does not appear in the list of installed programs, continue with the next step.

2. Removing from the Downloaded Program Files folder
   • In Windows Explorer, double-click the Windows\Downloaded Program Files (or WINNT\Downloaded Program Files) folder, right-click the ActiveX control you want to remove, and then click Remove.
   • When you are prompted to remove the software, click Yes.

3. Deleting the mgaxctrl.dll file
   • If the first two methods don't remove the Mapguide Viewer ActiveX Control, then search your hard disk(s) for the mgaxctrl.dll file. If one or more mgaxctrl.dll files are found, you can simply delete them or, better yet, rename the file(s) in case you want the file back for some reason.

Test to be sure the MapGuide Viewer is fully uninstalled by trying to access a MapGuide map (taking care not to install again!). Or check the MapGuide Viewer section on the Display MapGuide Environment page. If MapGuide is still working, try re-booting and test again to be sure the MapGuide Viewer is really removed from your system.

Uninstalling the MapGuide Viewer ActiveX control in Windows 7, Windows Vista or Internet Explorer 8

The following Windows Vista instructions are adapted from the Windows Vista Help and How-to under the "Can I delete Add-ons or ActiveX controls?" FAQ.

To delete an ActiveX control that you have installed, use the Add-on Manager. If the add-on cannot be removed in Add-on Manager, you might be able to uninstall it through Control Panel.

To delete the MapGuide Viewer ActiveX control you have installed in Internet Explorer 8:

We haven't tested this procedure with Windows 7 yet, but it should be similar.

1. Open Internet Explorer by clicking the Start button, and then clicking Internet Explorer.
2. Click the Tools button, and then click Manage Add-ons.
3. Under Show, click Downloaded controls to display all ActiveX controls.
4. Click the ActiveX control you want to delete (Autodesk MapGuide ActiveX Control).
5. Verify that the Status column is set to Enable. If Disable is set then right-click on the word "Disable" and change it to Enable.
   (This may avoid problems enabling an ActiveX control you install after you delete an older one.)
6. With the MapGuide ActiveX Control still selected, click 'More information', in the bottom-left area of the Manage Add-Ons window.
7. In the More Information dialog box, click Remove. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
8. When you are finished, click Close.

To delete the MapGuide Viewer ActiveX control you have installed in Internet Explorer 7:

1. Open Internet Explorer by clicking the Start button , and then clicking Internet Explorer.
2. Click the Tools button, click Manage Add-ons, and then click Enable or Disable Add-ons.
3. In the Show list, click Downloaded ActiveX controls to display all ActiveX controls.
4. Click on the ActiveX control you want to delete (Autodesk MapGuide ActiveX Control).
5. Verify that Enable is set in the Settings area of the dialog box. If Disable is set, then click Enable. (This may avoid problems enabling an ActiveX control you install after you delete an older one.)
6. Click the ActiveX control you want to delete (Autodesk MapGuide ActiveX Control), and then click Delete.
7. When you are finished, click OK.

Uninstalling the MapGuide Viewer Plugin (Netscape 4.x)

1. Click Start, point to Settings, click Control Panel, double-click Add/Remove Programs, and then click the Install/Uninstall tab.
2. If the Autodesk MapGuide(R) Viewer Plug-In you want to remove appears in the list of installed programs, click on it, click Add/Remove, and then follow the instructions on the screen. If the Autodesk MapGuide(R) Viewer Plug-In does not appear in the list of installed programs, it is not installed.
3. When you are prompted to remove the software, click Yes.

Uninstalling or Manually Installing the MapGuide Viewer Java Edition

See Autodesk MapGuide Viewer Java Edition Manual Install or Uninstall