he whole set of COM+ services are madeavailable in .NET via a set of classes gathered into theSystem.EnterpriceServices namespace. Such classes are implemented in the sharedassembly named System.EnterpriseServices.dll. Almost all
In a few cases, in particular when running MsDos batch files from within a VB application, you may want to determine the ERRORLEVEL set by an external application. You can’t
There is no built-in VB function that lets you know whether a control – such as a ListBox – is currently displaying a vertical scrollbar. Here’s a pair of functions
Before posting an Internet request you should check that the user has entered a valid Internet address. You can do this with a parsing routine, or use the following routine
Frequently you need to sort arrays of records using multiple keys. This may be required since one single key does not uniquely identify a record (e.g. you may need both
The GlobalMemoryStatus API function returns detailed information about the current load on the physical and virtual memory. You can use the following code to display the current amount of free