Running the program with System.Diagnostics.Process.Start causes an application error

Question

On my computers, DWG files open with:

"C:\Program Files\AutoCAD LT 2007\acadlt.exe" "%1"

If I run this from the command line:

"C:\Program Files\AutoCAD LT 2007\acadlt.exe" "C:\Some Path\Test.dwg"

AutoCAD Lite opens a DWG file.

Similarly, if I open a command prompt and run the same exe with an argument, it works fine.

However, if I use

var proc = new System.Diagnostics.Process();
var info = new System.Diagnostics.ProcessStartInfo();

and then

info.FileName = "C:\Some Path\Test.dwg";
proc.StartInfo = info;
proc.Start();

or

info.FileName = "C:\Program Files\AutoCAD LT 2007\acadlt.exe";
info.Arguments= "C:\Some Path\Test.dwg"
proc.StartInfo = info;
proc.Start();

or

info.FileName = "cmd.exe";
info.Arguments= "C:\Program Files\AutoCAD LT 2007\acadlt.exe" "C:\Some Path\Test.dwg"
proc.StartInfo = info;
proc.Start();

I get the following error:

---

acadlt.exe - Application Error

The command at "0x01317c8c" refers to the memory at "0x01317c8c". Memory cannot be read.

Click OK to end the program. Click "CANCEL" to debug the program.

Cancel OK

---

By the way, the code works fine if I go through the code using a debugger.

Does anyone know how I can use Process.Start to open this DWG?

Answer 1

, Xenocode Postbuild . .NET exe ( ), . Xenocode .

Answer 2

, :

info.WorkingDirectory = "same path as current directory in cmd.exe";

Answer 3

One of the differences between running from the command line and using it ProcessStartInfothis way is that the latter uses shell execution . I do not think that this can cause this problem, but it can cause problems. Try adding the following and see if it fixes the problem.

info.UseShellExecute = false;