The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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    Join 4,224 other subscribers is the site by Pluimers Software Ontwikkeling, a small, flexible and pragmatic Dutch company providing Software Development and IT services both inside the Netherlands and internationally.

This is what we do and who we are:


  • Coaching
  • Mentoring
  • Consulting
  • Assessment
  • Developing
  • Projects
  • Training


  • Microsoft Certified Trainer and Developer
  • Delphi Certified Trainer and Developer



With about 25 years of IT experience, Pluimers Software Development is a real specialist in the software development market.

We specialize in the creation and maintenance of complex systems with a pitch towards the communication between systems.

Often, we provide speakers for conferences in both our homebase – The Netherlands – and abroad.


Because we have an international network in both the Microsoft and the Delphi Communities, we can provide solutions for almost every software development problem.

In addition, we are eager to learn and good at teaching our knowledge to other people. Clients will get a solution that they can move on with.


Since we don’t sell products, we are independent from vendors, and we can provide unbiased advice to our clients.

We work in a pragmatic way towards excellent solutions. Our primary goal is that clients will be independent from us. Of course we will make sure that clients can fall back on our knowledge and experience.

Knowledge and experience focus

Right now, we focus on these areas of software development:


  • .NET 4.5, 4.x, 3.x, 2.0, 1.x, and Win32
  • Windows 10, 8.1, 8, 7 Vista, XP, 2000 and NT
  • Windows Server 2012+R2, 2008+R2, 2003+R2, 2000 and NT
  • Windows Mobile Devices en Compact Framework
  • Android and iOS mobile devices including Xamarin and Delphi tool chains
  • Windows XP Embedded


  • Visual Studio 2015 / 2013 / 2012 / 2010 / 2008 / 2005 / 2003 / 2002
  • SQL Server 2012 / 2008 / 2005 / … / 6
  • Delphi XE8 / … / XE2 / XE / 2009 / 2007 / 2006 / … / 1
  • Interbase XE3 / XE2 / XE / 2009 / 2007 / 7 / … / 5


  • Message Queueing
  • WebSerivices / SOAP / JSON / Service Oriented Architecture
  • ADO.NET / dbExpress / BDP.NET / BDE
  • internet
  • AS/400 interoperability
  • Audio Streaming and audio/video multi-media systems


As we have been active since MS-DOS 1 and Turbo Pascal 1 we have a lot more to offer than the above areas.

On request, we can mail you a portfolio of products where we were instrumental. The portfolio shows you the means we have used and the knowledge we provided.

Pluimers Software Ontwikkeling – Amsterdam – mail: – tel: 020 610 8322 – fax: 020 610 8323

Trade register Amsterdam 34152606


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