PowerDesigner is available in both 32-bit and 64-bit Windows versions.
| PowerDesigner Component | 32-Bit/64-Bit Versions | 
|---|---|
| PowerDesigner Client | 32-bit and 64-bit versions available through separate installers. If you are restricted from installing the 64-bit version of PowerDesigner on your 64-bit Windows machine, you may install the 32-bit version. In this situation, to ensure that PowerDesigner can communicate with your data sources, you should use the 32-bit version of the ODBC Administrator tool. 32-bit PowerDesigner cannot connect to 64-bit ODBC DSNs. For detailed information about working with 32-bit DSNs on a 64-bit version of Windows, see http://support.microsoft.com/kb/942976. | 
| Repository | The repository is stored in a database on your DBMS server, which may be 32-bit or 64-bit. A single repository database accepts connections from 32-bit and 64-bit clients. | 
| Repository Proxy | 32-bit and 64-bit versions available through separate installers. Both versions accept connections from 32-bit and 64-bit clients. | 
| PowerDesigner Portal Server | A single version is installed with a 32-bit or 64-bit Tomcat server selected automatically for your Windows environment. |