If the test is to operate on multiple machines, you could use a trigger file.
Ex. Workflow-
- Browser opened and work performed on PC1
- PC1 Enters a loop checking for a file in a directory (can be a txt file, or any kind of empty file)
- Browser opened and work performed on PC2
- PC2 writes the trigger file to the location where PC1 is checking, indicating the work has been completed
- PC1 sees that the file exists and exits the loop to complete additional tasks
- PC1 cleans up the trigger file and terminates the testing
Of course, this same workflow can be utilized on a single PC by enumerating the browsers and calling them to perform work independantly. For this method, look at the TestComplete documenation for "BrowserIndex".
