473,325 Members | 2,608 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,325 software developers and data experts.

ActiveX Hardware/Dongle License

I've got an SDK that installed a dll & a sample vb.net project. It came
with a parallel port hardware dongle.

There's a sample vb.net application which I'm opening up in vb.net (vs.net
2003). The form is essentially blank aside having 1 instance of an activex
control, derived from said dll. In the sample app, I can clearly see where
the control is being defined & added to the form's control collection.

So if I switch over to 'design view' to view the form, I should see the
activex control, but I don't. The activex control does not appear, and in
the task list I see these two errors:

The variable 'AxControl' is either undeclared or was never assigned.
You do not have a license to use this ActiveX control.

But the variable 'AxControl' *is* declared and assigned, so I assume that
this error is somewhat of a red herring and that the root of my problem is
the licesning (it's preventing the control from being instantiated or
something along those lines).

I presume the parallel port dongle contains the design-time license for the
activex control. Is there a "standard" way in which I can tell my project
(or the control) to "go out to the parallel port and read the license
information from the dongle"? Or is this a proprietary situation where I
need to contact the makers of the SDK? (who are unfortunately in china, and
I don't speak chinese so I'm somewhat forced to make this work w/o their
help).
Nov 21 '05 #1
0 1595

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
by: Greg Adourian | last post by:
Hi, Still in the design process of a Windows 2003 web server with a SQL backend. Expecting to have about 2000 visitors a day accessing lists and search queries on a 200-300 MB db. This server...
2
by: Ben Yanis | last post by:
I've been developing and selling Access based database products for years, and this group has always been a great resource to me. Now I find myself releasing a new Active-X based on some of my...
0
by: PC User | last post by:
Problem: ============================= Error message when trying to insert a MS Access ActiveX into a form. "You do not have the license required to use this ActiveX control"...
2
by: Smartin | last post by:
I tried to add the "Microsoft Common Dialog Control, version 6.0" (also known as COMDLG32.OCX) to an Access97 application I am developing and received error "You Don't Have a License to use this...
0
by: Frank | last post by:
I am attempting to convert an asp file to a asp.net file using C#. The original file has an ActiveX control which is contained in a cab file. The cab file contains the .ocx file which connects...
1
by: Frank | last post by:
Short Version of Question: Can anyone provide an example of how I should embed the ActiveX and license, and then use it in a function?
0
by: Frank | last post by:
Short Version of Question: Can anyone provide an example of how I should embed the ActiveX and license, and then use it in a function?
2
by: Rune Allnor | last post by:
Hi all. I consider to let a client have a test version of some of my software. If the software turns out to do what it is supposed to do, I would like to protect it from being distributed, e.g....
1
by: rkpassed | last post by:
Hello IT Lions ... here i am using one software its running by the usb dongle software lock, it shown in device manager as USB DONGLE, but its not shown in My Computer as a one partion like...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
by: ryjfgjl | last post by:
ExcelToDatabase: batch import excel into database automatically...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
1
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.