C#, WPF - OpenFileDialog does not appear

Question

I have been searching up and down the web and unfortunately never came across an issue quite like mine, so here goes:

My C# WPF application won\'t show me no OpenFil

Answer 1

I know this question was ask in 2010 and the direct answer wasn't the one I'll provide but as today date there is an other reason to have this problem.

I recently installed my software on a fresh virtual machine which works perfectly on my dev computer and many other testing machines.

The Windows 7 virtual machine was too fresh and did not have the SP1 KB976932 installed.

Once installed, I could use the open sand save file dialogs.

I hope this will help someone else.