Recent content by jashy

I have a COM+ application. Im able to deploy it on another windows 2000 machine and it works fine. However when I deploy it on a windows NT web server, it does install the COM+ app. However the component doesnt work (the method calls from ASP dont activate the component on the win2000 server) I...

Im sorry to ask a different question on this thread!!! But I have a COM+ application. Im able to deploy it on another windows 2000 machine and it works fine. However when I deploy it on a windows NT web server, it does install the COM+ app. However the component doesnt work (the method calls...

Hi, We are using Oracle 8i on UNIX. And we have client applications running on Windows NT. Client apps are developed using VB. We have middle tier business objects developed in VB. Can we use DCOM components running on MTS with Oracle on UNIX in the back end? Do we get the advantages of MTS when...

Hi, We are using Oracle 8i on UNIX. And we have client applications running on Windows NT. Client apps are developed using VB. We have middle tier business objects developed in VB. Can we use DCOM components running on MTS with Oracle on UNIX in the back end? Do we get the advantages of MTS when...

I have all these classes exposing same kind of methods. Which all require a maximum of two very small classes (non-MTS) to instantiate. So I dont think that can be a problem for me. Thanks anyway

Hi Im creating the middle tier business components for a three tier client/server application. Its being developped in VB 6. The middle tier is going to be hosted in MTS. Is there any restriction on how many components can be hosted in a single MTS package? I have some 40/50 odd classes (each...

Hi<br>I am designing a N-tier DCOM application using VB, Oracle and MTS. I have defined methods in the MT (Middle Tier) which are called from the UI (User Interface) to retrieve large amounts of data. As sending all the retrieved data back to the UI can create huge network traffic, I am looking...

Hi<br>Passing ByVal has the advantage over ByRef in the sense that it avoids network round trips.<br><br>However, in our application, we need to pass back the result of a SELECT statement on the table which might return more than 25,000 rows at once. We are thinking of passing the query result...

Nikolaj,<br>Yes, sort of. Now I can pass the UDTs ByVal to the middle tier which accept them as a Variant.<br>So I achieved both: <br>1&gt; Pass the arguments ByVal to improve the performance and<br>2&gt; Use UDTs in the UI tier to avoid the clumsy method definitions involving large number of...

Nikolaj,<br>I've created the Public UDT in the middle tier. Now when I add a reference to the ActivX exe(MT) in the UI, the UDT is available in the UI.<br><br>Now, In the Middle tier the method accepts a Variant eg:<br>Public Function Test(ByVal arg1 as Variant) as Variant.<br><br>However, in...

Thank you all for your suggestions.<br><br>What Im doing is something similar. I've defined User Defined Types (UDT) in the middle tier. Now I want to accept these UDTs from the UI tier. However VB doesnt allow to accept the UDTs ByVal. They must be accepted ByRef. So a workaround is that in the...

Hi,<br>I am developing business tier objects in VB6 which are to be deployed using DCOM. I am using ActiveX Exe's for my business components. I have a lot of methods and their arguments need to be passed from the user interface tier to these business objects.<br><br>These arguments are not...

Hi<br>COM (Component Object Model) is a component technology which is a set of standards which allow the components to communicate with one another. COM is a binary standard. Any component that is developped using these guidelines, which are nothing but a way of exposing interfaces for...

I am designing a DCOM application. I want to define a method in my class (a DCOM component developped in VB) which returns a ADODB recordset object. Now this object is created on my DCOM server, a remote machine. How can I invoke its properties and methods on my client machine, which is...