"Device Is Not Open or Is Not Known" Running VB MCITEST Sample

ID Number: Q83756

1.00

WINDOWS

Summary:

If you run the MCITEST sample program included with Microsoft

Professional Toolkit for Microsoft Visual Basic 1.0 for Windows and

receive the error message

The device is not open or is not known

it is possible that you have not installed the multimedia movie player

driver that is on Disk 1 of the Professional Toolkit. These drivers

are not automatically installed because of their large sizes. If you

need these files, you must install them using the Windows Control

Panel.

This information applies to Microsoft Professional Toolkit for

Microsoft Visual Basic version 1.0 for Windows.

More Information:

The drivers needed to run the animation portion of the MCITEST are

MCIMMP.DLL and MMP.DLL. These files are archived on Disk 1 of the

Visual Basic Professional Toolkit. To install these drivers, you must

use the Windows 3.1 Control Panel. If you have Multimedia Extensions

for Windows 3.0, you must rename the following files on Disk 1 before

installing using the Control Panel:

MCIMMP.DL_ to MCIMMP.DLL

MMP.DL_ to MMP.DLL

To install the drivers, do the following:

1. Run Control Panel from the Windows Program Manager either by

clicking on the icon or by choosing Run from the File menu.

2. In the Control Panel, double-click on the Drivers icon.

3. In the Drivers dialog box, choose the Add button.

4. In the Add dialog box, select Unlisted or Updated Driver and choose

the OK button.

5. In the Install Driver dialog box, specify the drive containing Disk

1 of the Visual Basic Professional Toolkit, and choose the OK

button.

6. In the Add Unlisted or Updated Driver dialog box, select the

"[MCI] Multimedia Movie Player" driver and choose the OK button.

The driver is now installed. You should now be able to run the

animation portion of the MCITEST program.

Additional reference words: 1.00