Class Not registered error - ADO DAO RDO RDS

bhatnagar.alok schrieb:
> Hello All,
>
> In my application i am trying to create access database.
> I am creating an instance of catalogptr using "CreateInstance". It
> gets created successfully. After that when I create the database using
> "Create" function, It gives me an exception saying "Class not
> registered".
>
> My connection string is:
> "Provider='Microsoft.Jet.OLEDB.4.0';Data Source='d:\info.mdb';" and
> the OS i am getting error on is Windows 2003 enterprise edition.
>
> hr = m_pCatalog.CreateInstance(__uuidof(Catalog));
> if(SUCCEEDED(hr))
> {
> m_pCatalog->Create(strConnectionString);
>
> 4th line gives the exception.
>
> Can anybody tell me the problem??
>
> Rgds
> Alok Bhatnagar
>
The single quotes in your connection string look suspicious
to me. I'd try

"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=d:\info.mdb;"

On Sep 12, 1:24 pm, "ekkehard.horner" <ekkehard.hor...@arcor.de>
wrote:
> bhatnagar.a... schrieb:
>
> > Hello All,
>
> > In my application i am trying to create access database.
> > I am creating an instance of catalogptr using "CreateInstance". It
> > gets created successfully. After that when I create the database using
> > "Create" function, It gives me an exception saying "Class not
> > registered".
>
> > My connection string is:
> > "Provider='Microsoft.Jet.OLEDB.4.0';Data Source='d:\info.mdb';" and
> > the OS i am getting error on is Windows 2003 enterprise edition.
>
> > hr = m_pCatalog.CreateInstance(__uuidof(Catalog));
> > if(SUCCEEDED(hr))
> > {
> > m_pCatalog->Create(strConnectionString);
>
> > 4th line gives the exception.
>
> > Can anybody tell me the problem??
>
> > Rgds
> > Alok Bhatnagar
>
> The single quotes in your connection string look suspicious
> to me. I'd try
>
> "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=d:\info.mdb;"


This is not the problem because it is working fine on other machines.
On one machine it is not working. OS is Windows Server 2003 Standard
Edition.

bhatnagar.alok wrote:
> On Sep 12, 1:24 pm, "ekkehard.horner" <ekkehard.hor...@arcor.de>
> wrote:
>> bhatnagar.a... schrieb:
>>
>>> Hello All,
>>
>>> In my application i am trying to create access database.
>>> I am creating an instance of catalogptr using "CreateInstance". It
>>> gets created successfully. After that when I create the database
>>> using "Create" function, It gives me an exception saying "Class not
>>> registered".
>>
>>> My connection string is:
>>> "Provider='Microsoft.Jet.OLEDB.4.0';Data Source='d:\info.mdb';" and
>>> the OS i am getting error on is Windows 2003 enterprise edition.
>>
>>> hr = m_pCatalog.CreateInstance(__uuidof(Catalog));
>>> if(SUCCEEDED(hr))
>>> {
>>> m_pCatalog->Create(strConnectionString);
>>
>>> 4th line gives the exception.
>>
>>> Can anybody tell me the problem??
>>
>>> Rgds
>>> Alok Bhatnagar
>>
>> The single quotes in your connection string look suspicious
>> to me. I'd try
>>
>> "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=d:\info.mdb;"
>
>
> This is not the problem because it is working fine on other machines.

It may not be this problem, but it may create problems with other
providers. I suggest you eliminate them.


> On one machine it is not working. OS is Windows Server 2003 Standard
> Edition.

"Class not registered" seems to be a pretty explicit error message. Have
you installed the Jet components on this machine?
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