Single MDI Application

See more:

C#

Hello,
I'm using Single-Instance
http://www.codeproject.com/KB/cs/CSSIApp.aspx[^]

what i want is when we open .txt file by "Open With" i want my application to give me the path of the .txt in each time we open .txt

Example:
1. The user open .txt file , by "Open With" the application send the .txt file path to form2
2. After that form2 read the .txt file path (taken from form1)

Error:
if i have C:\01.txt and C:\02.txt When we open the first file we will find that the path is correct , but when we open the second file we will find the path is incorrect becouse is the first file path

My Code:

string[] args = Environment.GetCommandLineArgs();
foreach(string arg in args)
{
    MessageBox.Show(arg);
}

[edit DMA: Link fixed]