Dear Experts

I connect map network mannually as

My computer --> Map Network Drive --> ..........


I use following commands to check whether network drive is connected or not

if not directory("Z:\")
	messagebox("No Network Connection",0+16+256,"Accounts System")
	clear events
	quit
else
	messagebox("Network Connection Exists",0+16+256,"Accounts System")
Endif

After this Z drive is shown with other Hard Disks.

Sometimes it says:

	messagebox("No Network Connection",0+16+256,"Accounts System")

But Z drive is still exists in my computer.

Then I disconnect Map Network Drive and connect again

Ater this I following messages is displayed

messagebox("No Network Connection",0+16+256,"Accounts System")

Why to repeat this again and again?

I think the problem is in this line

if not directory("Z:\")

I want to ask, is there any other command to check network drive connection?


Please help