Problem using trial license

schmakov · February 16, 2011, 8:12pm

I have downloaded GoWin 4.1.0.4 for .NET 4.0 Windows Forms trial for VS2010, installed fine, but when I tried to run the sample the following message came up:

"Built using GoDiagram Win for .Net Windows Forms, version 4.1

The license for this copy of GoDiagram is invalid or has expired.

Please purchase a license at www.nwoods.com ..."

I am running Windows 7, 64 bit edition

I would appreciate an advice in this regard.

Thanks.

Serguei.

Jake · February 16, 2011, 9:03pm

If you run the License Manager, does it show valid trial licenses?

schmakov · February 16, 2011, 9:24pm

Thansk for the prompt response.

Here the licenses from license manager:

The following licenses are present:
Northwoods.Go 4.1 evaluation (4.1.0), development expiring 2020-12-29
Northwoods.Go.Layout 4.1 evaluation (4.1.0), development expiring 2020-12-29
Northwoods.Go.Instruments 4.1 evaluation (4.1.0), development expiring 2020-12-29

Jake · February 16, 2011, 10:23pm

Oh… are you running one of the sample .exes from the kit?

The license is built into those, those should work on any system.

schmakov · February 17, 2011, 7:01am

Sample .exes included with the kit run fine. But when I compile the projects that are included in the sample4 solution all of them fail to run.

Jake · February 17, 2011, 7:26am

OK, I don’t think we’ve ever seen this before, when an eval license fails to work on WinForms. Is there anything “weird” about your system configuration or security wise?

schmakov · February 17, 2011, 7:49am

Nothing that I could possibly think of. My account belongs to Administrators group. Should I take a look at something in particular?

There is one thing though - a couple weeks back I did install an application built with commercial GoDiagram license, and uninstalled it shortly after. Is there a chance that uninstaller left something behind that now prevents the evaluation license to work?

I really appreciate your help on the issue.

Kind regards,

Serguei.

Jake · February 17, 2011, 8:40am

That shouldn’t matter. I’ll send you some email on how to do a complete reset / reinstall. We’ll see if that helps.

schmakov · February 17, 2011, 9:31am

Yes, it helped!

The problem was definitely related somehow to security settings on my machine - I will send you few observations I did while following your advice, may be they will help you to better understand what exactly happened. Feel free to share them on the forum if you choose so.

Thank you very much!

Kind regards,

Serguei.

wimbledon · July 20, 2011, 9:57am

Jake, please could you send me a copy of the same email, as I seem to be experiencing the same problem. Thank you.

Jake · July 20, 2011, 1:36pm

sent.

wimbledon · July 21, 2011, 5:10am

Perfect. Followed the instructions, re-installed, and problem resolved. Thank you Jake

ssgangwar · December 7, 2017, 8:54am

Hi Jake, I am also facing the similar issue with win64, I understand this thread is very old. I would appreciate if you can send me the instructions if available.