When you install this COBOL development system on top of Team Build, you need to restart your machine after the installation. This sets the environment properly and enables Team Build to track changes. You do not need to restart if you install Team Build later.
If you are using Team System Web Access you may find that merge and annotate commands are disabled for certain file types in your COBOL project (such as .cbl,.cpy ). To enable the commands, you need to add the extensions to MimeMap.xml in webaccess_install_dir\Web\App_Data. Edit the file with a text editor and add the extensions to the <Extensions> section with content type "text/plain". Finally, reset the application pool.
You can enable multiple check out and merge for certain file types in your COBOL project. In order to do this, right-click your server in Team Explorer and choose Team Foundation Server Settings > Source Control File Types. Add the extensions of the files to the list and enable multiple check out and merge as required.