Ahora se instalan los drivers ODBC junto con el instalador

setup.iss

@@ -48,6 +48,8 @@ Source: "fonts\*"; \
   DestDir: "{fonts}"; Flags: onlyifdoesntexist uninsneveruninstall
 Source: "ocx\*"; \
   DestDir: {sys}; Flags: onlyifdoesntexist regserver 32bit
+Source: "deps\*"; \
+  DestDir: {tmp}; Flags: deleteafterinstall; AfterInstall: InstallDep;
 
 [Tasks]
 Name: "desktopicon"; \
@@ -156,3 +158,29 @@ Name: "{commondesktop}\Laboral"; \
   WorkingDir: "{app}"; \
   Tasks: desktopicon; \
   Components: lab
+   
+[Code]
+
+procedure InstallDep;
+var
+  StatusText: String;
+  ResultCode: Integer;
+  MsiFile: String;
+begin
+  MsiFile := ExpandConstant(CurrentFilename);
+  StatusText := WizardForm.StatusLabel.Caption;
+  WizardForm.StatusLabel.Caption := CurrentFilename +'...';
+  WizardForm.ProgressGauge.Style := npbstMarquee;
+  Log(WizardSelectedComponents(False));
+  try
+    if not Exec('msiexec', '/quiet /i '+ MsiFile, '', SW_SHOW, ewWaitUntilTerminated, ResultCode) then
+    begin
+      MsgBox(CurrentFilename +' installation failed with code: ' + IntToStr(ResultCode) + '.',
+        mbError, MB_OK);
+      WizardForm.Close;       
+    end;
+  finally
+    WizardForm.StatusLabel.Caption := StatusText;
+    WizardForm.ProgressGauge.Style := npbstNormal;
+  end;
+end;