[Program crashes at open with]

After I restarted my PC it started working. I went to system variables panel to check for windir and it is there. I am not sure however either it was before restart. If it happens next time i will know to look for this. Thank you for answer.

[Program crashes at open with]

Hello there,

For some reason out of the sudden Open-with function (right click at the file) stopped working for me (Windows 7 64 bit). I cant really tell after what this started to happen. The message I get when I try to open Paint.net with an argument is:

 

 

Translating the first sentence to english it says that "value cannot be zero". Also I tried reinstalling, didnt help.

I would apreciate all help regarding this, I can provide additional information if needed.