error messages

I made a simple program for my mom and she installed it no problem and ran it with no problems. now I gave it to my sister and she ran it with no problems. both on win98se. but I gave it to my boss and she ran it on the work computer (win2000) and it runs ok. but when she click on a menu item to open another form she gets an error. the error states

Run-time error '-2147220999 (800401f9)':
Method '~' of object '~' failed.

I included most things in the package when I ran package and development on my vb6. all that form is is a listview that opens a database. it uses jet so I included those dlls and ocx or what ever it takes. so she took it home to her computer (win98se) and installed it and ran it and click on the same menu item and gets another error different from win2k. it reads as follows

class doesn't support automation or expected interface. also it was a run-time error. don't know the numbers.

does anybody have an idea or a source that shows what each error code it or how to fix it.

TIA

the errors that you are getting are caused by the ado or dao dlls that are being used

What version of the MDAC did you develop this app with?

I would suggest that you get your boss to download the latest mdac 2.6 sp1 from this link http://www.microsoft.com/data/download.htm install it and run the application :)

This is the fun and games of MDAC :)

ps your error was generated by winerror.h and the actaul error message that is associated with that error number is this

-2147220999 (800401F9) Error in the DLL

to actually get vb to decipher the correct error ddescription you need to use the format message api

Format Message API

VB Code:

Option Explicit
 
   Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000
 
   Private Declare Function FormatMessage Lib "kernel32" Alias _
      "FormatMessageA" ( ByVal dwFlags As Long, lpSource As Long, _
      ByVal dwMessageId As Long, ByVal dwLanguageId As Long, _
      ByVal lpBuffer As String, ByVal nSize As Long, Arguments As Any) _
      As Long
 
   Private Function MessageText(lCode As Long) As String
       Dim sRtrnCode As String
       Dim lRet As Long
 
       sRtrnCode = Space$(256)
       lRet = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0&, lCode, 0&, _
                 sRtrnCode, 256&, 0&)
       If lRet >0 Then
          MessageText = Left(sRtrnCode, lRet)
       Else
          MessageText = "Error not found."
       End If
 
   End Function

hope this has been helpful to you :)

thank you rudvs2, tha thas been a big help. she had that file but i think it was out of date. I am not sure what version it was.

again thanks for the help. :)

oh by the way I used Mdac_typ ver. 2.50.4403.12

actually how do I make it so that function gets used when there is an error. do I do something like

on error MessageText


or something similiar. forgive me as I act stupid here. :) maybe it is brain farts. :D

something like this:

VB Code:

Private Sub Command1_Click()
    On Error GoTo xit
    'ur code
    '
    '
    Exit Sub
xit:
    MessageText (Err.Number)
End Sub

thanks Peet, I will give that a go.