Error Could Not Find Installable ISAM

Question

I ve written some VBA code in an Excel workbook to retrieve data from an Access database in the same directory on a desktop   It works fine on my machine and several other machines running Windows XP  but when we tested this on a Vista machine  we encountered the following error      Could not find installable ISAM   I ve done a bunch of searching online but can t seem to find a concrete answer   The connection string seems to be fine  and  as I mentioned  it works on several machines   Does anyone have any idea what could be causing this   My connection string is as follows   Provider Microsoft Jet OLEDB 4 0 Data Source D  ptdb Program Tracking Database mdb    Thanks

User · Answer

Try putting single quotes around the data source:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb';

The problem tends to be white space which does have meaning to the parser.

If you had other attributes (e.g., Extended Properties), their values may also have to be enclosed in single quotes:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb'; Extended Properties='Excel 8.0;HDR=YES;IMEX=1;';

You could equally well use double quotes; however, you'll probably have to escape them, and I find that more of a Pain In The Algorithm than using singles.

User · Answer

I used this to update a excel 12 xlsx file          System Data OleDb OleDbConnection MyConnection          System Data OleDb OleDbCommand myCommand   new System Data OleDb OleDbCommand            MyConnection   new System Data OleDb OleDbConnection  provider Microsoft ACE OLEDB 12 0 Data Source  D   Programming  Spreadsheet-Current xlsx  Extended Properties  Excel 12 0 HDR YES               MyConnection Open            myCommand Connection   MyConnection          string sql    Update  ArticlesV2   set  ID   Test  where  ActualPageId  114              myCommand CommandText   sql          myCommand ExecuteNonQuery            MyConnection Close

User · Answer

Have you checked this http   support microsoft com kb 209805  In particular  whether you have Msrd3x40 dll    You may also like to check that you have the latest version of Jet  http   support microsoft com kb 239114

User · Answer

This problem is because the machine can t find the the correct ISAM  indexed sequential driver method  registered that Access needs   It s probably because the machine doesn t have MSACeesss installed  I would make sure you have the latest version of Jet  and if it still doesn t work  find the file Msrd3x40 dll from one of the other machines  copy it somewhere to the Vista machine and call regsvr32 on it  in Admin mode  that should sort it out for you

User · Answer

Try putting single quotes around the data source:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb';

The problem tends to be white space which does have meaning to the parser.

If you had other attributes (e.g., Extended Properties), their values may also have to be enclosed in single quotes:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb'; Extended Properties='Excel 8.0;HDR=YES;IMEX=1;';

You could equally well use double quotes; however, you'll probably have to escape them, and I find that more of a Pain In The Algorithm than using singles.

User · Answer

Try putting single quotes around the data source:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb';

The problem tends to be white space which does have meaning to the parser.

If you had other attributes (e.g., Extended Properties), their values may also have to be enclosed in single quotes:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb'; Extended Properties='Excel 8.0;HDR=YES;IMEX=1;';

You could equally well use double quotes; however, you'll probably have to escape them, and I find that more of a Pain In The Algorithm than using singles.

User · Answer

Have you checked this http   support microsoft com kb 209805  In particular  whether you have Msrd3x40 dll    You may also like to check that you have the latest version of Jet  http   support microsoft com kb 239114

User · Answer

Have you checked this http   support microsoft com kb 209805  In particular  whether you have Msrd3x40 dll    You may also like to check that you have the latest version of Jet  http   support microsoft com kb 239114

User · Answer

Try putting single quotes around the data source:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb';

The problem tends to be white space which does have meaning to the parser.

If you had other attributes (e.g., Extended Properties), their values may also have to be enclosed in single quotes:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source='D:\ptdb\Program Tracking Database.mdb'; Extended Properties='Excel 8.0;HDR=YES;IMEX=1;';

You could equally well use double quotes; however, you'll probably have to escape them, and I find that more of a Pain In The Algorithm than using singles.

User · Answer

This problem is because the machine can t find the the correct ISAM  indexed sequential driver method  registered that Access needs   It s probably because the machine doesn t have MSACeesss installed  I would make sure you have the latest version of Jet  and if it still doesn t work  find the file Msrd3x40 dll from one of the other machines  copy it somewhere to the Vista machine and call regsvr32 on it  in Admin mode  that should sort it out for you

User · Answer

Place single quotes around the Extended Properties   OleDbConnection oconn        new OleDbConnection            Provider Microsoft Jet OLEDB 4 0 Data Source     path     Extended Properties  Excel 8 0 HDR YES IMEX 1         Try it  it really works

User · Answer

Use this connection string   string connectionString     Provider Microsoft ACE OLEDB 12 0            Data Source     strFileName          Extended Properties             Excel 12 0 HDR YES

User · Answer

I used this to update a excel 12 xlsx file          System Data OleDb OleDbConnection MyConnection          System Data OleDb OleDbCommand myCommand   new System Data OleDb OleDbCommand            MyConnection   new System Data OleDb OleDbConnection  provider Microsoft ACE OLEDB 12 0 Data Source  D   Programming  Spreadsheet-Current xlsx  Extended Properties  Excel 12 0 HDR YES               MyConnection Open            myCommand Connection   MyConnection          string sql    Update  ArticlesV2   set  ID   Test  where  ActualPageId  114              myCommand CommandText   sql          myCommand ExecuteNonQuery            MyConnection Close

User · Answer

Place single quotes around the Extended Properties   OleDbConnection oconn        new OleDbConnection            Provider Microsoft Jet OLEDB 4 0 Data Source     path     Extended Properties  Excel 8 0 HDR YES IMEX 1         Try it  it really works

User · Answer

This problem is because the machine can t find the the correct ISAM  indexed sequential driver method  registered that Access needs   It s probably because the machine doesn t have MSACeesss installed  I would make sure you have the latest version of Jet  and if it still doesn t work  find the file Msrd3x40 dll from one of the other machines  copy it somewhere to the Vista machine and call regsvr32 on it  in Admin mode  that should sort it out for you

User · Answer

I have just encountered a very similar problem   Like you  my connection string appeared correct--and indeed  exactly the same connection string was working in other scenarios   The problem turned out to be a lack of resources   19 times out of 20  I would see the  Could not find installable ISAM   but once or twice  without any code changes at all   it would yield  Out of memory  instead   Rebooting the machine  solved  the problem  for now        This happened using Jet version 4 0 9505 0 on Windows XP

User · Answer

Just use Jet OLEDB  in your connection string  it solved for me   an example is below    Provider Microsoft Jet OLEDB 4 0 Persist Security Info False Data Source E  Database mdb Jet OLEDB Database Password b10w

User · Answer

Have you checked this http   support microsoft com kb 209805  In particular  whether you have Msrd3x40 dll    You may also like to check that you have the latest version of Jet  http   support microsoft com kb 239114

User · Answer

Just use Jet OLEDB  in your connection string  it solved for me   an example is below    Provider Microsoft Jet OLEDB 4 0 Persist Security Info False Data Source E  Database mdb Jet OLEDB Database Password b10w

User · Answer

Use the connection string below to read from an XLSX file      string ConnectionString    Provider Microsoft ACE OLEDB 12 0 Data   Source      lt       Extended   Properties Excel 8 0

User · Answer

Use the connection string below to read from an XLSX file      string ConnectionString    Provider Microsoft ACE OLEDB 12 0 Data   Source      lt       Extended   Properties Excel 8 0

User · Answer

This problem is because the machine can t find the the correct ISAM  indexed sequential driver method  registered that Access needs   It s probably because the machine doesn t have MSACeesss installed  I would make sure you have the latest version of Jet  and if it still doesn t work  find the file Msrd3x40 dll from one of the other machines  copy it somewhere to the Vista machine and call regsvr32 on it  in Admin mode  that should sort it out for you

User · Answer

Use this connection string   string connectionString     Provider Microsoft ACE OLEDB 12 0            Data Source     strFileName          Extended Properties             Excel 12 0 HDR YES

User · Answer

I have just encountered a very similar problem   Like you  my connection string appeared correct--and indeed  exactly the same connection string was working in other scenarios   The problem turned out to be a lack of resources   19 times out of 20  I would see the  Could not find installable ISAM   but once or twice  without any code changes at all   it would yield  Out of memory  instead   Rebooting the machine  solved  the problem  for now        This happened using Jet version 4 0 9505 0 on Windows XP

[excel] Error: "Could Not Find Installable ISAM"

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