What requirements / restrictions do I need to meet when my application needs to run on a virtual machine ?

Question

I am used to devellop applications for desktops. More and more I see that company's use virtual machines as it-infrastructure.
What requirements do I need to meet to ensure my applications work on virtual machines as well.
My applications do use tcp-clients and data storage.

Answer 1

Well you could build your own enviroment in which the virtual machine runs.

Answer 2

Just like normal.
The virtual machine just need to be set up correctly

Answer 3

Probably because the virtual machine is a bad emulator or the programm depended on something that wasnt well implemented in the virtual machine.

Answer 4

I thought so. Do you know why older programs sometimes have difficulty to run on virtual machines.

Answer 5

Can you participate on that as a devellopper ? The customer can have any virtual machine.

Answer 6

Can you explain that more.
I should build a Virtual machine, in which the virtual machine of the customer runs ?
What is the product that you deliver to the customer a virtual machine with your application on in it
Or a executable ?
If I have a virtual machine of type x, and the customer is using y. Can these work together in one network ?