Silverlight 4, WCF RIA Services and OlivaNova Business Logic

To me, Silverlight has always been a fascinating technology. I started playing around with Silverlight back in September 2007. Since then, I always wanted to create a Silverlight user interface for OlivaNova. With the first versions, the lack of standard data controls made it really difficult to implement a data-driven application. A lot has changed since then and today the time is ripe to begin afresh. The software architecture basically looks like this: ...

October 13, 2010 · 5 min · 945 words · Harry Kimpel

SQL Server 2008 installation fails due to "Restart required"

I currently ran into an interesting issue when installing MS SQL Server 2008. During the initial checks at startup of the installation process I got the following error: “Restart required”. So I restarted my computer but without success. I got exactly the same error message again. I found out that this happens due to a wrong registry entry. In order to get the prerequisite-checks to succeed I had to delete the value of the following registry entry: ...

April 26, 2010 · 1 min · 88 words · Harry Kimpel

Microsoft Virtual PC: lessons learned in virtualization

I am using Microsoft’s Virtual PC quite heavily in all my development projects since it has lots of advantages in my day to day work … especially when working in multi-project environments. It is just until this week that I learned a very important lesson in this area. I can’t imagine how difficult and inefficient my setup has been. I found this very interesting blog entry “HOWTO: Use Virtual PC’s Differencing Disks to your Advantage” by Andrew Connell that makes life so much easier and in additon to that saves tons of space on my harddrive.

October 16, 2009 · 1 min · 96 words · Harry Kimpel

Installing Windows 7 RC ... getting around CDBoot code 5

Just recently I wanted to give Windows 7 RC a test drive. I used to run Windows XP on a pretty old fashioned computer with the following setup: - AMD Athlon XP 1600+ - 2 GB RAM - ASROCK K7VT4A Pro - ASUS V7100 Pro This setup works quite decently. Well, at least for the purpose I am using this machine for which is emailing, surfing and some document and media management. ...

July 28, 2009 · 1 min · 184 words · Harry Kimpel

Installing SQL Server 2008 RC0

Today, I really struggled with MS SQL Server 2008 RC0. I tried to install it on my Microsoft Vista German box without any luck. During System Configuration Check it told me that the performance counter registry hive is corrupted. Looking at the detailed log I found this information: Rule Name: PerfMonCounterNotCorruptedCheck Rule Description: Checks if existing performance counter registry hive is consistent. Message/Corrective Action: The performance counter registry hive is corrupted. To continue, you must repair the performance counter registry hive. For more information, see https://support.microsoft.com/kb/300956. ...

September 11, 2008 · 2 min · 278 words · Harry Kimpel

Microsoft Surface

This is one of the hottest technology I’ve seen in a while: Microsoft Surface

July 4, 2007 · 1 min · 14 words · Harry Kimpel