The Windows version of the SQL Anywhere .NET Data Provider DLL (install-dir\Assembly\V2\iAnywhere.Data.SQLAnywhere.dll) is registered in the Global Assembly Cache when you install the SQL Anywhere software. On Windows Mobile, you do not need to register the DLL.

If you are deploying the SQL Anywhere .NET Data Provider, you can register it using the gacutil utility that is included with the .NET Framework.