March 2008 Entries

My USB keeps changing drive letters, why?
Unless you configure the drive from a few levels under Administrative Tools, the drive will appear to randomly select a letter. For example, one day when you plug your USB drive in, you'll see E: and on another occassion you'll see F:. It's not really random--its actually tied to which USB ports are available and the internal definitions of the ports by sequence. This can be troublesome should you have shortcuts on your desktop that point to programs on your USB drive. The install packages would ......

Posted On Thursday, March 13, 2008 8:18 AM | Comments (9)

VS gives the error LockClrVersion, Why?
If you are getting an error message with the phrase LockClrVersion could not be located in the dynamic link library mscoree.dll it is probably because you don't have the correct .net framework loaded. For the newer versions of C#/VB/etc.express (Visual Studio 8.0), you'll need to load the v2.0 .net framework. If you're trying to execute Visual Studio from a location that isn't associated with your machine's installation, you'll probably move the error to some other error--at which point, a reinstall ......

Posted On Wednesday, March 12, 2008 8:52 AM | Comments (2)

My window is cut-off or truncated. Why?
If an application window, like the one to the left, keeps you from being able to enter data because it cannot be maximized or it is not enabled to scroll up or down, it is usually because the programmer made some assumptions about the display settings. To compensate for that, you'll have to change the display settings on your computer. To do this, follow these steps: 1. Start>Control Panel>Display> Appearance>Color Scheme 2. Choose something like Desert, which displays at a smaller font. ......

Posted On Tuesday, March 11, 2008 12:52 PM | Comments (1)

The Northwind DB is missing! What do I do?
As long as you (or your colleagues) don't have any serious test data you've been working on that needs recovering, it's pretty simple to generate a fresh instance! First, search for the SQL Server script that builds the demo database under \Mssql\Install. The name of the script is called: instnwnd.sql . If the script isn't found there, an alternative place to look is under the Visual Studio SDK path(s), for example: C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Samples\Setup . If the script ......

Posted On Tuesday, March 11, 2008 11:17 AM | Comments (0)

Thinking Through Rules in C#
As I continue with writing the manuscript on rules engines, I've isolated my examples to be coincidental with the overall theme of engineering decision support applications. Today, I am taking a close look at the seemingly simple act of identifying and rejecting unattractive alternatives when competing projects are under review to determine whether or not a given project will warrant funding. Some of the determining factors are well known algorithms in the financial world. Specifically I am thinking ......

Posted On Friday, March 7, 2008 2:51 PM | Comments (0)