WI Migrator performs a migration of TFS work items environment from a Team Project to another, cross TFS collections / servers. A great solution for migrating between two live TFS environments, including migration to the cloud, from the cloud or between clouds. This tool is similar to WI Migrator, but enables offline migration: provides an export to all work items environment to a local folder, then the user manually copies the export folder, takes the folder to another environment (can be separated), and performs import there.

WI Offline Migrator performs an offline migration of TFS work items environment from a Team Project to another, cross TFS collections / servers.

Great solution for migrating between two separate TFS environments, where you cannot connect both TFS servers at once.

Work items from source environment can be filtered by area/iteration/Work item Types.
WI Migrator attempts to create them in similar area/iteration path (or using default)
Duplication performed between work items with the same work item type name, and based on the same work item fields.
User can choose whether to save the latest revision of work items or all revisions
User can choose whether using bypass mode in target environment (requires admin permissions), to restore with original date and user field values.
Test suites refer to the migrated test cases, and requirement based suites refer to the migrated requirements
References to shared steps (in test case steps) are updated to reference the migrated shared steps.
Hyperlinks are created to link to original work items and original changesets.
On migration on same collection, TFS links created to original work items and original changesets.

Only for V.I.P