ASP.NET Installation Debate

D

dm3281

Hi all --

We currently have an ecommerce application installed on a W2K Advanced
server running .NET 1.1.

In November, I installed .NET 2.0 in order to allow a Windows Forms
application I wrote to be run on the server for extracting system
information.

We have recently had an issue with our ecommerce application where we would
experience high CPU utilization and customers would begin calling in to
complain about slow response After looking into our EventLogs and audit
logs for our ASP.NET 1.1 apps, I would have a bunch of SOAP error messages
and connection fails, etc.

From my understanding of the application, when users log into our website,
we also access a third party's website at the same time using SOAP.

We later found out that third party had changed their IP address via DNS and
our firewall was blocking our servers outbound connection. We were
basically down over the weekend until Monday afternoon until we realized the
problem.

We then made the necessary firewall change and flushed the DNS cache. We
started receiving the correct IP address.

However, we were still experiencing some issues -- especially with something
internal to our application. It somehow displays a hyperlink to the end
user to our third party based on some condition. I'm not exactly sure what
that condition is. But...

Our IT department that wrote the software is blaming the issues that we have
been having from having the .NET 2.0 framework installed. This was likely
because the EventLog reports a message about "Unable to access Shim
Database..." message. According to Microsoft KB, this is a known issue and
has to do with read/write access to the registry. There is a hotfix, but I
never applied, since it appeared not to be an issue for us. Anyway, the IT
folks finally removed .NET 2.0 and the application and hyperlinks began
working correctly again.

All of the applications were configured to use ASP.NET 1.1 framework with
Internet Service Manager.

I'm currently debating with our IT folks that the problem was not related to
have 2.0 installed (it has been installed since last November!) and it was a
coincendence that application started working.

They are also telling me that they have seen "strange things happen" when
the 2.0 framework is installed on ecommerce servers running their
applications. I cannot get them to define strange... but this sounds like
copout.

From my basic understanding of .NET and writing a few programs in C# using
Forms and ASP.NET, I see no incompatibility issues with having both
frameworks installed side-by-side.

Isn't this the very essence of having a separate distributable runtime for
each release? So you don't break existing applications?

I've basically been banned from re-installing 2.0 on our web server because
of this incident.

I think this is totally ridiculous and cannot receive any concrete facts as
to what strange problems they experience and how the 2.0 framework messes up
their application. To me it seems like an easy answer.

I know the root cause has to do with their SOAP access to the vendor and
somehow when DNS does not resolve or there is a connectivity issue, it
causes the server to get bogged down due to the volume of logins that occur
with mutiple sessions attempting to do the same thing.

They have no response as of yet.

Does anyone have any opinions on this issue?

Can .NET 1.1 and 2.0 apps co-exist without issues????

....irate in IT land!
 

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