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#### Windows 2003 64-bit Server Requirements

This section describes the Parallels Pro Control Panel 10.3.1 requirements specific to Windows 2003 64-bit server.

Before installing Parallels Pro Control Panel 10.3.1, ensure that the following pre-requisites tasks are performed on the Windows 2003 64-bit server.

Important: By default, .NET 1.1 framework is included in the Windows 2003 64-bit Standard edition. However, it is not installed on Windows 2003 64-bit Enterprise edition. Hence, for the Windows 2003 64-bit Enterprise edition, you must manually download and install it from the Microsoft Web site.

Pre-requisites for installing Parallels Pro Control Panel on Windows 2003 64-bit server:

1. Install Microsoft .NET framework 2.0 from the Microsoft Web site.
2. In the command prompt window of the Parallels Pro Control Panel server, run the following command:

   cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0

   This command tells IIS to allow only 64-bit applications.

3. Change to the folder `%SYSTEMROOT%\Microsoft.NET\Framework64\v2.0.50727` and run the command:

   - aspnet_regiis.exe -i

   This command installs the 64-bit .NET 2.0 framework on the default Web site.

   Note: If you do not perform the above steps, the ASP.Net State Service will not be installed and started. For more information, refer to Microsoft Help and Support (http://support.microsoft.com/kb/911720)

4. Run the command that tells IIS to allow 32-bit .NET applications.

   cscript %SYSTEMDRIVE%\inetpub\AdminScripts\adsutil.vbs SET W3SVC/AppPools/Enable32BitAppOnWin64 1

5. Change to the folder `%SYSTEMROOT%\Microsoft.NET\Framework\v2.0.50727` and run the command:

   - aspnet_regiis.exe –i

   This command installs the 32-bit .NET 2.0 framework on the default Web site.

6. Ensure that the ASP.NET (32-bit) Web Service Extension is enabled. If not, you must perform the following steps:
   1. Click Start > Programs > Administrative Tools > Internet Information Services (IIS) Manager
   2. Expand local computer and click Web Service Extensions
   3. Select ASP.NET v2.0.50727 (32-bit) and click Allow
7. Ensure that the ASP.NET State Service is started and the Startup type is set to Automatic. If not, you must perform the following steps:
   1. Click Start > Programs > Administrative Tools >Services
   2. Right-click ASP.NET State Service and then click Properties.
   3. Select Startup type as Automatic and click Start.
   4. Then click OK.