Category Archives: Computers

RAID 1 (mirror) read speed as fast as RAID 0 (stripe)

Posted on February 28, 2013 by Maris

To our big surprise, the new Intel Raid controller on the Motherboard Intel DX79TO (ver. AAG28805-401) with Intel X79 Express Chipset shows awesome read performance. The raid model is Intel Rapid Storage Technology enterprise 3.0 (Intel Rapid Storage enterprise – … Continue reading →

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Did you know that IP addresses (IPv4) can be written in shorter representations?

Posted on January 9, 2013 by Maris

Did you know that IPv4 addresses can be written in shorter representations, like IPv6 addresses? Everyone have seen form of IPv6 represented as “shorter form”: Example from IPv6: 2001::7334 ::1 :: You can use our free tool ipv6-literal.com to convert … Continue reading →

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PowerShell in Unicode, Windows 8 RP and Windows Server 2012 RC

Posted on August 2, 2012 by Maris

I was testing our software with latest version of Microsoft Windows — Windows 8 Release Preview and Windows Server 2012 Release Candidate (Windows Server 2012 RC Datacenter). There was some changed behavior in very specific cases for some rarely used … Continue reading →

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Disappearing folder – bug in Windows 7

Posted on April 7, 2012 by Maris

In process of testing one of our automation software I hit interesting Windows 7 bug. First I found it in our software, and right away tested this scenario on Windows 7, and bug was there. The bug. Create folder on … Continue reading →

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Strange MAC addresses in your network (00:0D:3A:D7:F1:40 – 00:0D:3A:FF:FF:FF)

Posted on March 14, 2012 by Maris

Today I noticed many strange MAC addresses in our LAN. The addresses looked very similar – only few bits were changing. Sometime this happens, when Ethernet cable is damaged or due to network card malfunction. Here are some sample MAC … Continue reading →

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On production machine: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts.

Posted on December 24, 2011 by Maris

I was helping my colleagues to debug one weird bug on ASP.NET 4.0 website. Everything worked well on developer’s machine, but after publishing to IIS 7.5 Windows 2008 R2 Webserver, we always got site partially working. Everything worked, except AJAX … Continue reading →

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C++ now allows to forward declare enum(s)

Posted on December 5, 2011 by Maris

Thanks to recently approved standard (C++11 / C++0x), it is possible to forward declare enums. It was possible with classes for the long time, for example, “class MyClass;” in C++ [forward] declares class without providing underlying details. For enums it … Continue reading →

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.NET text box blank/empty/invisible/hidden when text reaches certain length

Posted on December 2, 2011 by Maris

It seems, that .NET 2.0 have bug when text box (TextBox control) appears blank / empty / invisible / hidden — not showing text when text length reaches certain size. My quick tests shows, that the length of the text … Continue reading →

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Static code analysis for C++ for free and for Pro

Posted on November 25, 2011 by Maris

Up and until Visual Studio 2010 Microsoft decided that Code Analysis tool was available only for Visual Studio Premium and Ultimate editions. I have Visual Studio 2010 Pro w/MSDN subscriptions (actually 2 of them), but can not use Code Analysis … Continue reading →

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COM, BSTR or _bstr_t is leaking memory

Posted on November 8, 2011 by Maris

COM, BSTR or _bstr_t is leaking memory. That was my first thought when I saw increasing number in Task Manager under memory colon for the process I am developing. Searching Google for quick answer I found famous Microsoft employee and … Continue reading →

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