#1  
Old 20th April 2011, 10:32 AM
amorette amorette is offline
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Join Date: May 2010
Posts: 24
Default Ado provider and x64 apps

I tried to use an x64 application (win form) with the Ado Provider.

The app is a simple sql requester (a memo, a button, a connection to the Nexus server and a grid to display results).

Using non native mode, the app works fine (both in 32 and 64 bits).

Using the native mode, the app works only in 32 bits but refuse to connect to server in 64 bits.

Any idea ?
  #2  
Old 20th April 2011, 10:55 AM
Thorsten Engler [NDA]
 
Posts: n/a
Default Re: Ado provider and x64 apps

amorette wrote:

> Using non native mode, the app works fine (both in 32 and 64 bits).

As expected. In this case the provider is fully managed code.

> Using the native mode, the app works only in 32 bits but refuse to
> connect to server in 64 bits.

As expected. In this case the provider has to load a native code dll. Delphi is
not capable currently of creating 64bit dll's. 32bit dll's can not be loaded
into 64bit processes.
  #3  
Old 20th April 2011, 11:19 AM
amorette amorette is offline
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Join Date: May 2010
Posts: 24
Default

thanks for the answer.

so what about web app runing under IIS on x64 OS. When the application pool "32 application enable" is set to true, it still doesn't work. The process looks like to be running in 32 bits mode but the provider still refuse to connect. Does that mean that even if the application pool process is in 32 bits mode the Ado provider is still running in 64 ?

In summary, my question is: can I run IIS process in native mode on x64 OS ?


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