Please note that ASP.NET 1.1 only supports 32-bit mode. ASP.NET 2.0 and above supports both 32-bit mode and 64-bit mode but can not run both 32-bit and 64-bit mode at the same time. If you need to run both ASP.NET 1.1 and ASP.NET 2.0 based sites, you’ll have to run IIS in 32-bit mode.
ASP.NET 1.1, 32-bit version
To run the 32-bit version of ASP.NET 1.1, follow these steps:
| 1. | Click Start, click Run, type cmd, and then click OK. |
| 2. | Type the following command to enable the 32-bit mode:
cscript %SYSTEMDRIVE%inetpubadminscriptsadsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1
|
| 3. | Type the following command to install the version of ASP.NET 1.1 and to install the script maps at the IIS root and under:
%SYSTEMROOT%Microsoft.NETFrameworkv1.1.4322aspnet_regiis.exe -i
|
| 4. | Make sure that the status of ASP.NET version 1.1.4322 is set to Allowed in the Web service extension list in Internet Information Services Manager. |
ASP.NET 2.0, 32-bit version
To run the 32-bit version of ASP.NET 2.0, follow these steps:
| 1. | Click Start, click Run, type cmd, and then click OK. |
| 2. | Type the following command to enable the 32-bit mode:
cscript %SYSTEMDRIVE%inetpubadminscriptsadsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1
|
| 3. | Type the following command to install the version of ASP.NET 2.0 (32-bit) and to install the script maps at the IIS root and under:
%SYSTEMROOT%Microsoft.NETFrameworkv2.0.50727aspnet_regiis.exe -i
|
| 4. | Make sure that the status of ASP.NET version 2.0.50727 (32-bit) is set to Allowed in the Web service extension list in Internet Information Services Manager. |
ASP.NET 2.0, 64-bit version
To run the 64-bit version of ASP.NET 2.0, follow these steps:
| 1. | Click Start, click Run, type cmd, and then click OK. |
| 2. | Type the following command to disable the 32-bit mode:
cscript %SYSTEMDRIVE%inetpubadminscriptsadsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0
|
| 3. | Type the following command to install the version of ASP.NET 2.0 and to install the script maps at the IIS root and under:
%SYSTEMROOT%Microsoft.NETFramework64v2.0.50727aspnet_regiis.exe -i
|
| 4. | Make sure that the status of ASP.NET version 2.0.50727 is set to Allowed in the Web service extension list in Internet Information Services Manager. |
For more information about 64-bit versions of Windows and the 64-bit version of the .NET Framework, visit the following Microsoft Developer Network (MSDN) Web sites:
Content retrieved from: https://support.appliedi.net/kb/a101/how-can-i-switch-asp_net-between-32-bit-and-64-bit-modes.aspx.