Remko Weijnen's Blog (Remko's Blog)

About Virtualization, VDI, SBC, Application Compatibility and anything else I feel like

Archive for the ‘General’ Category

Blog improvements

When I started this blog in 2007 (wow that’s almost 10 years ago) I went for a cheap web hoster with a reasonable performance to host it.

In the beginning performance was acceptable but over the years it has degraded and of course user experience standards have changed.

I decided it was time to do something about it so I’ve moved the blog from a shared platform to my own server.

This server is running on optimized flash storage  where most writes are DeDuplicated and never actually hits the flash disks:

image

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Today I stumbled upon Shodan, a search engine for devices and services.

I decided to search for Citrix and this was the first page of results:
SNAGHTMLf942758

It’s interesting to see that we get details such as the name of published applications. But it’s possible to get even more details:

SNAGHTMLf96a047

 

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  • Debugging Tools for Windows Direct Download

    imageSince some time Microsoft no longer offers the Debugging Tools for Windows as a standalone download.

    You need to download the SDK installer and download from there.

    This sort of annoys me since I sometimes need to install WinDBG quickly for some troubleshooting.

    I watched the URL’s with Fiddler while using the SDK Installer and here are the current URL’s:

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  • Filed under: General
  • HDMI Output in Black & White

    imageI connected my Dell laptop to my TV via HDMI and the picture on the TV was in Gray scale instead of Color.

    I had connected my laptop before and it worked fine so I knew that my TV and the HDMI cable were working correctly. I had recently updated the drivers for my NVIDIA graphics card so I went into the NVIDA Control Panel.

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  • MSCOMM32.OCX returns error 80040112

    Yesterday I wrote about troubleshooting an application that used Com Port redirection in Citrix.

    During the troubleshoot I noticed that the application used an ActiveX component, MSCOMM32.OCX, for serial communication.

    I wanted to quickly test if the component was correctly registered so I searched the registry from HKEY_CLASSES_ROOT for mscomm32.ocx.

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    WordPress and the Cookie Monster

    Cookie MonsterAs you are probably aware the EU has made legislation regarding the use of cookies on websites. This new legislation is active since May 2012.

    The Dutch government has also issued legislation in the Telecommunications LAW which states that you must ask the user for permissions before server out cooking. Unless these cookies are necessary for the correct technical working of the website or service. This leaves some grey areas but for instance using Google Analytics is a clear case of a situation where opt-in is required.

    Although I am not using Google Analytics I wanted to check what cookies my own blog was serving out and if it was necessary to ask for an opt-in.

     

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  • imageI had to troubleshoot an application that was published with Citrix XenApp. The problem with this application was that it didn’t have an button/icon in the taskbar and the window would sometimes disappear.

    I noticed that this (cr)application was written in Visual Basic, so I decided to run it through a decompilation tool.

    The decompiler was able to list the forms used in the Application:

    image

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    Today I was asked to troubleshoot an executable that didn’t work correctly on Windows XP Embedded.

    On startup it displayed the following message:

    I verified that System.Configuration.dll was present (in C:\Windows\Microsoft.NET\Framework\v2.0.50727).

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  • Excel 2010 multi-threaded calculation

    Excel 2007 IconI was just browsing through the Options tab in Excel 2010 when I noticed the following setting:

    image

     

    This feature was introduced in Excel 2007.
    In the default settings, multi-threaded calculation is Enabled with "Use all processors on this computer".

    On a physical desktop this would be the preferred setting since it will make formula calculation as fast as possible.

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  • Filed under: General
  • I needed to login as root on a Linux based virtual appliance to do some troubleshooting. In my case the appliance was running Suse Linux Enterprise.

    I booted the VA using the Ubuntu Live CD and opened a Terminal. Then I used the cfdisk tool (sudo cfdisk /dev/sda) to view the partitions:

    cfdisk /dev/sda

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  • Filed under: General
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