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Problem with gds32.dll (Delphi - Interbase - Firebird)

Posted on 2008-10-31
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Last Modified: 2013-12-09
I have a Delphi application using Interbase component to access a Firebird database
I currently use the gds32.dll of Firebird 1.5 (but the database, located on a "server" is in Firebird 2.1 version
It works perfectly well.
The PCs that need to run the application have just the application executable, the gds32.dll and a few other needed ones (ib_util.dll ... msvcp71.dll etc...). All these have just been copied in the executable directory
Fine !
Now I want to "migrate" these clients to 2.1 version.
I replace the gds32.dll by the new one, and the same for all the other dll (and the .msg file)
When I then start the application, it directly issues this error message (I translate from french) : DLL interbase gds32.dll not founc in the path. Please install Interbase  .... !
But the new dll and associated stuff is there !!!
What did I miss ?
How can I correct this on the clients, without special installation ?
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Question by:LeTay
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Expert Comment

by:NickUpson
ID: 22850126
"gds32.dll by the new one", do you mean you take the fbclient.dll for 2.1 and rename it to gds32.dll or something else
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Author Comment

by:LeTay
ID: 22850162
Yes, like you write, take the fbclient.dll for 2.1 and rename it to gds32.dll, like I did in the past for version 1.5
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LVL 19

Expert Comment

by:NickUpson
ID: 22850994
I'm not 100% sure but I think that doesn't work anymore. If you download the firebird install, when it runs you have the option of making a gds32.dll file for compatability. suggest you do this and use the file that is produced at that point
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Author Comment

by:LeTay
ID: 22851135
Will try directly and keep you posted !
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Author Comment

by:LeTay
ID: 22851681
Done but does not work
Obviously, the "installer" does something else that make it work with 2.1
What I do not understand at all is the following (I made several tests)
On the PC where I indeed have installed everything, I created a directory with my exe, the DB and the DLLs (gds32.dll etc... in fact gds32.dll is fmembed.dll renamed. Size around 2.7 MB).
It runs fine, accessing my database (.FDB) in "embedded mode" (firebird service down at that time)
I am sure that the gds32.dll that is there is the one that is used, because if I delete the other one that it uses (icuuc30.dll etc...), it says it can't find them.
So where is the trick ?
Just copying this on another "virgin" PC and the problem appears.
I am completly stucked ....
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Accepted Solution

by:
LeTay earned 0 total points
ID: 22902647
I found what the problem is : the gds32.dll or some depending other dll gives a kind of "access denied" when trying to open it !
That gave the error
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