EAI File Transport - Does it use a default disk drive for the output file (using the Send method)?

Siebel EAI Community:

I have a test workflow where I can run it on a workstation or a server.  On my workstation, I invoke the workflow from a Siebel dedicated client.  On the server, I invoke the workflow from a Siebel thin client.

In our environment, workstations have a drive while servers have an E: drive.

I am using this service/method/argument within the workflow:

Business Service: EAI File Transport
Method: Send
Argument: FileName

If I literally pass the FileName Argument as the string "\DarainTest", EAI File Transport creates my file just fine whether the workflow runs on my workstation in the Simulator or on the Siebel server.  I never have to specify a disk drive (ie