Getting sqlite3.dll not found error with Delphi -

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i getting sqlite3.dll not found error @ delphi app. have sqlite3.dll file on pc located @ e://sqlite-dll-win32-x86-3071700

my source follows

procedure tform2.button1click(sender: tobject); var     results: tdataset; begin     sqlconnection1.params.add('database=e://empn.s3db');     sqlconnection1.libraryname := 'e://sqlite-dll-win32-x86-3071700/sqlite3.dll';     try         sqlconnection1.connected := true;         sqlmonitor1.active := true;          sqlconnection1.execute('selct * usergroup', nil, results)           end; end;

as mentioned in above code pointed out path library by

sqlconnection1.libraryname := 'e://sqlite-dll-win32-x86-3071700/sqlite3.dll';

but still error sqlite3.dll not found. how troubleshoot error?

a small note

beginning delphi xe3, libraryname is obsolete.

in older delphi versions, libraryname indicated "dbexpress library associated driver" (e.g. dbxfb.dll firebird), while vendorlib indicated "library supplied database vendor support client-side use of database" (e.g. fbclient.dll/fbembed.dll firebird, equivalent sqlite's sqlite3.dll).

embarcadero's sqlite dbexpress driver

in on windows, driver uses delayed loading of sqlite3.dll. like:

function sqlite3_open_v2; external 'sqlite3.dll' delayed;

so dll loaded loadlibrary , standard search strategy find modules applies (first process directory, usual path list).

however stategy can altered using setdlldirectory.

so have put sqlite3.dll accessible thru path or try following hack:

(beware interfere other code have used setdlldirectory; see david heffernan's comment)

setdlldirectory('e:\sqlite-dll-win32-x86-3071700'); try   sqlconnection1.open;   setdlldirectory(''); // restore default search order end;

warning: make sure not mixing 32 , 64 bits modules (i.e. 32 bit exe , 64 bit dll or vice versa).


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