Hi,
and thanks for the very fast response.
I attach the VI and maybe you can build an application and test it.
The icon in the task bar doesn't disappear after a time.
The VI only reads out two local txt-files and at the end it writes into one of them. There is no hardware or network access.
Allthough there is the problem that the application try to access to the internet when I start it. I don't know why, but unblock the application in my firewall.
Your question about the antivirus program, I use the GData AntiVirenKit Internet Security 2005. This includes a personal firewall and a double scan technologie, that it using the Kapersky and Bitdefender engine.