Why do I get the error message ‘The SendUsing configuration value is invalid’
This problem occurs because read access to the Internet Information Services (IIS) metabase and the Microsoft Active Directory directory service has been removed for the Everyone group. This access has been removed because of a security modification in Exchange 2000 Server SP3. CDOEX, CDOSYS, and System.Web.Mail must have access to the IIS metabase to access information about the location of the pickup directory path. This behavior occurs when you use the Sendusingpickup method and if this information is not specified in the application code. Because access is restricted, the non-administrative user under whose security context the application is running cannot read this information from the IIS metabase and Active Directory. For more information refer Read Access to the Everyone Group Is Removed After You Install Exchange 2000 SP3
How can I test performance of the Web application
One approach is to use the Microsoft Web Application Stress tool. It allows you to simulate load on a web server and can be used to test performance. The following kb article covers how to use it (including where to download it from).
I have installed ASP.NET hotfix and I find that Startup Type of the ASP.NET Session State Service is set to Manual.Why?
Microsoft has acknowledged this as a Bug To set the StartUp Type as desired refer following steps In Control Panel, open Administrative Tools. Click Services. The Services window appears. Expand the Name column so that the complete name of each service appears. Note A Startup Type column displays the current Startup Type value for each service. Double-click the ASP.NET State Service service. The ASP.NET State Service Properties window appears. On the General tab, click one of the following options in the Startup type list: Manual Automatic Disabled Click Apply, and then click OK to save your settings. In the Services window, notice your changes to the Startup Type in the Startup Type column.
Are there resources online with tips on ASP to ASP.Net conversions?
Microsoft has designed The ASP to ASP.NET Migration Assistant help us convert ASP pages and applications to ASP.NET. It does not make the conversion process completely automatic, but it will speed up project by automating some of the steps required for migration. The following Code Migration Assistants are discussed in the link below. ASP to ASP.NET Migration Assistant PHP to ASP.NET Migration Assistant JSP to ASP.NET Migration Assistant Refer Migrating to ASP.Net Also refer: Microsoft’s ASP to ASP.NET Code Migration Assistant John Peterson’s article Microsoft’s ASP to ASP.NET Migration Assistant Paolo Cavone’s article From ASP to ASP.NET… Painlessly!
Is there something as RecordSet we had in ASP that can be used in ASP.NET
You can make use of a DataReader. Refer How to display data in Textboxes using DataReader?