Comments on: 64-Bit Gotchas http://vspug.com/johnwpowell/2007/07/19/64-bit-gotchas/ Just another VSPUG - Virtual SharePoint User Group weblog Thu, 04 Mar 2010 20:24:45 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: ss http://vspug.com/johnwpowell/2007/07/19/64-bit-gotchas/#comment-194 ss Thu, 04 Mar 2010 20:24:45 +0000 #comment-194 According to: http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/13f991a5-45eb-496c-8618-2179c3753bb0.mspx?mfr=true >On 64-bit Windows, the World Wide Web Publishing service does not support running 32-bit and 64-bit worker processes concurrently on the same server. So, it seems that a 64 bit SharePoint would be unable to load after the Enable32BitAppOnWin64 has been set to true since it spawns a 32 bit worker process (W3WP), which can no longer load 64 Bit SharePoint bits anymore. This is our understanding at the moment with IIS 6 at least (this seems to be a global setting and thus a show stopper). One could run a 32 bit SharePoint or alternatively run the 32 bit applications somewhere else: on a different machine since 64 bit SharePoint is much more powerful and it may not be worth giving it up just for the sake of running some other 32 bit process. According to:

http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/13f991a5-45eb-496c-8618-2179c3753bb0.mspx?mfr=true

>On 64-bit Windows, the World Wide Web Publishing service does not support running 32-bit and 64-bit worker processes concurrently on the same server.

So, it seems that a 64 bit SharePoint would be unable to load after the Enable32BitAppOnWin64 has been set to true since it spawns a 32 bit worker process (W3WP), which can no longer load 64 Bit SharePoint bits anymore. This is our understanding at the moment with IIS 6 at least (this seems to be a global setting and thus a show stopper).
One could run a 32 bit SharePoint or alternatively run the 32 bit applications somewhere else: on a different machine since 64 bit SharePoint is much more powerful and it may not be worth giving it up just for the sake of running some other 32 bit process.

]]> By: ss http://vspug.com/johnwpowell/2007/07/19/64-bit-gotchas/#comment-193 ss Thu, 04 Mar 2010 19:36:52 +0000 #comment-193 I have a question: We have a small SharePoint Farm with two Web Front End Servers (64 Bit Server 2003). 64 Bit SharePoint was running fine. Then in order to run a 32 bit Web Page we performed following steps (essentially allowed the 32 bit webpage to run by setting ecanble32bitapponwin64 to true). This made our 64 Bit to stop working completely on this web front end server. We could not open even the SharePoint Central Administration. The problem has been resolved by reversing the steps and repairing SharePoint, but is this something expected? -- Windows, you need to configure IIS to run 32-bit applications. 1. Open a command prompt and navigate to the %systemdrive%InetpubAdminScripts directory. 2. Type the following command: cscript.exe adsutil.vbs set W3SVC/AppPools/Enable32BitAppOnWin64 true 3. Press Enter. Note: For full details, see the Microsoft article Running 32-bit Applications on 64-bit Windows (http://technet2.microsoft.com/WindowsServer/en/library/ee52acd2- 84e0-417c-92b3-80b1cb3848281033.mspx?mfr=true). 4. Install ASP.Net (32-bit version) by typing the following in the command window: C:WINDOWSMicrosoft.NETFramework 2.0.50727>aspnet_regiis.exe -i 5. Type iisreset at a command prompt. 6. In the IIS Management console, under Web Service Extensions, allow ASP.NET (32-bit). I have a question: We have a small SharePoint Farm with two Web Front End Servers (64 Bit Server 2003). 64 Bit SharePoint was running fine. Then in order to run a 32 bit Web Page we performed following steps (essentially allowed the 32 bit webpage to run by setting ecanble32bitapponwin64 to true). This made our 64 Bit to stop working completely on this web front end server. We could not open even the SharePoint Central Administration. The problem has been resolved by reversing the steps and repairing SharePoint, but is this something expected?

–

Windows, you need to configure IIS to run 32-bit applications.
1. Open a command prompt and navigate to the %systemdrive%InetpubAdminScripts directory.
2. Type the following command:
cscript.exe adsutil.vbs set W3SVC/AppPools/Enable32BitAppOnWin64 true 3. Press Enter.
Note: For full details, see the Microsoft article Running 32-bit Applications on 64-bit Windows (http://technet2.microsoft.com/WindowsServer/en/library/ee52acd2-
84e0-417c-92b3-80b1cb3848281033.mspx?mfr=true).
4. Install ASP.Net (32-bit version) by typing the following in the command window:
C:WINDOWSMicrosoft.NETFramework 2.0.50727>aspnet_regiis.exe -i 5. Type iisreset at a command prompt.
6. In the IIS Management console, under Web Service Extensions, allow ASP.NET (32-bit).

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