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Error Connecting to Sybase database in Visual Web Developer 2005


I am trying to connect to Sybase in my Web application in Visual Web Developer 2005.  I was given two .dlls which are


I was able to add a reference to the Sybase.Data.AseClient.dll but not the sybdrvado115.dll.

Using the following code. I can import the Sybase.Data.AseClient but when I put a break on the line with the new connection I get an error....

Imports System
Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports Sybase.Data.AseClient

Partial Public Class Start_aspx
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim oCon As AseConnection = New AseConnection()
        oCon.ConnectionString = "Data Source='mysource';Port=5000;Database='tblStart';UID='myname';PWD='myPass';"
    End Sub
End Class 'Start_aspx

The error I get is...

"The type initializer for 'Sybase.Data.AseClient.AseConnection' threw an exception."
{"Unable to load DLL 'sybdrvado115.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"}
I tried to put a reference to 'sybdrvado115.dll' and I am told it is not an assembly and could not be loaded.  I then put it in the bin folder of my web application but still get the same error.  I also messed around in the .net configuration utility and have had no luck.  Any help on this would be greatly appreciated.


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1 Solution
Try copying sybdrvado115.dll into system32 folder, worked for me.
kenadelglassAuthor Commented:

I had tried that earlier and tried putting both dlls in the c:\winnt\system32 folder.  I loaded Sybase.Data.AseClient.dll into the Assembly Cache but still get the same error.  Any other ideas?  How exactly are you set up?  I am on Win2k professional if that helps at all.
I also copied msvcr71.dl to system32 folder along with sybdrvado115.dll.  I have a Win 2003 Server hosting the web app connecting to Windows 2K hosting the sybase db.

I found my solution here:


hope this helps
kenadelglassAuthor Commented:

You rock!  It is my utmost pleasure to grant you the 500 point bounty!  Moving the msvcr71.dll to the system32 folder did the trick!!  Incidently, we use dbArtisan and I found a version of the msvcr71.dll it its app folder.  I have always been able to connect to Sybase through dbArtisan.  It all makes sense now!

Thanks so much!

Anytime, I'm glad it works!
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