This relates to Visual Test 4, but probably to later versions as well.
A .pcd file is a compiled test project. If you use the Test\Compile menu command in the Developer Studio, rather than the Go button, then your project will compile without being run and you can save the resulting .pcd file wherever you want.
What's the point? Well, once you have compiled and saved a .pcd file, you can use the mtrun.exe program to run tests independent of the Developer Studio. This is particularly useful on a devoted test machine. So, on this machine, you install only the operating system and the program you are testing, along with a very basic MsDev installation containing mtrun.exe, a couple of dlls mtscreen.exe, mtview.exe and not much else. The test setup is therefore as sparse as possible. To run the test, transfer a .pcd file onto the test machine hard drive (or even access it over a network) and type in
c:\PATH TO\mtrun.exe c:\PATH TO\test_project.pcd
and the test will run.
Hope that helps,
P.S. .pcd stands for P-Code (but I don't know what that stands for)
[This message has been edited by WilfN (edited 04-12-2000).]