TeeChart.dll loading always causes apps to hang for 30 secs

[TZM]

Hi support,

we have the same problem, but additionally to this the app connects to the internet. Our customer does not accept any unauthorized web access therefore we have a problem with the current version. As posted previously I think that this problem does not occour in version 2. Is there a solution to this issue ? We are using version v3.5.3330.
Any help would be appreciated.
Regards
Markus

[Narcís]

Hi Markus,

There was a problem with this due to an old digital signature certificate used for signing TeeChart assemblies. However, this was fixed some months ago. Could you please check if using latest release available at the client area solves the problem at your end?

Thanks in advance.

[TZM]

Could you please check if using latest release available at the client area solves the problem at your end?

Hi support,
Thanks for the fast reply. But how do I remove the TChart component at the client pc including all the available certificates? Or do I missunderstood something? Is it just using the new assemblies in my project and thats it ? I don't think so...
Any advice how to cleanly remove old TChart components and maybe this certificate from a system would be appreciated.
Regards,
Markus

[Narcís]

Hi Markus,

Your client's environment shouldn't have any TeeChart related certificate. You should just compile your application upgrading its TeeChart.dll reference. Also you should be aware that your project needs to be compiled with TeeChart's licenses.licx as an embedded license, for more information please read tutorial 17. Tutorials can be found at TeeChart's program group. However, you don't need to install any certificate on client's machine when deploying applications.

[Chris.CHWU]

Hello:
Thanks first.

I tried the program you mentioned in our server again. It took 40 seconds to see the teeChart in the screen.
I upgraded the .NET framework to 2.0SP1, it took 15 seconds to see the teeChart.

But, if I login to a network domain inside our company, the time it takes to show the teeChart is less than 1 second. (The same as the performance in our normal PC which always login to a company network domain).

Wish the information could help you provide more information/hint for us to eliminate the issue.
Thanks again.

Chris Wu

[Narcís]

Hi Chris,

Sorry but it's not clear to me which are the tests you performed exactly. Can you please confirm you ran all test Christopher Ireland suggested?

I'll also send you a TeeChart assembly not digitally-signed. Can you please check if it makes a difference?

Thanks in advance.

[Chris.CHWU]

Hello:

I tested your new DLL in our servers.
There is no hang issue any more. The application smoothly shows the teeChart in screen under 1 second.

Could you explain what's the difference between digital-digned and not digital-signed? And why it has the impacts in performance.

Thanks again.

Chris Wu

[Narcís]

Hi Chris,

Thanks for the information!

Please read this. This website explains how a signed assembly behaves in .NET Framework. As a workaround you could try programmatically set the CRL verification as suggested in that page.

[TZM]

There was a problem with this due to an old digital signature certificate used for signing TeeChart assemblies. However, this was fixed some months ago. Could you please check if using latest release available at the client area solves the problem at your end?

Hi support,
thank you for this information. I am using version 3.5.3498.27367 but it still connects sometimes to the following ip addresses: 91.199.212.174, 149.5.128.174 and 91.209.196.174 which is crl.comodoca.com. I have no idea for what reason this connections are used, but it is a little bit annoying for my customer.
Any help would be appreciated
Regards,
Markus

[Narcís]

Hi Markus,

Have you read the link I posted in my previous reply? This issue is explained there and there's a workaround suggestion too. I'll also send you the link to the test unsigned version.