VB.EXE "License File for Custom Control Not Found" Explanation

ID Number: Q81458

1.00

WINDOWS

Summary:

If you distribute the source code (.FRM) of a program that uses the

custom controls of the Professional Toolkit for Visual Basic, you must

also distribute the necessary custom control files (.VBX, .DLL, and/or

.EXE support files, as described in the "Microsoft Professional

Toolkit for Visual Basic: Custom Control Reference").

If a user has not purchased the Professional Toolkit for Visual Basic

and receives a program containing an .FRM file written with the

Professional Toolkit, then the Visual Basic programming environment

(VB.EXE) will not be able to load the program, and will display the

following error message:

License file for custom control not found. You do not have

an appropriate license to use this custom control in the

design environment.

Note that anyone who acquires a program in the form of an executable

(.EXE) file that uses the custom controls from the Visual Basic

Professional Toolkit will be able to run that program with no error.

This information applies to Microsoft Professional Toolkit for

Microsoft Visual Basic programming system version 1.0 for Windows.

More Information:

The licensing file VB.LIC is installed by the Visual Basic

Professional Toolkit SETUP.EXE program. This licensing file is

installed into the Window's \SYSTEM subdirectory.

A custom control's startup code checks to see if this VB.LIC licensing

file exists when the control is loaded into the environment. If the

file does not exist, or is corrupt, the control aborts the loading

process and displays the Alter message box:

License file for custom control not found. You do not have

an appropriate license to use this custom control in the

design environment.

Additional reference words: 1.00