I later discovered that at JET4 DLLs became part of the Windows OS installed for at least Windows 2000 and XP. The next time I did an install of XP I check and sure enough. I looked in the system folder and sure enough the JET4 DLLs were there. Nothing that would open an Access database. There was actually no other user software installed. I went to open Access 2000 to test the database and discover that there was not a single Office app installed on the server. One day in fall of 2000 when I needed to compact some JET4 databases on the local hard drive of a Windows 2000 Server used as a file server. How I discover the Jet Compact Utility only required the JET4 DLLs. I only compact an Access database on a local hard drive. I never compact a database over the wire. My guess is that Microsoft gave you a list of applications that the new would have installed the JET DLLs. In reality, all the JET Comp utility requires to run is the JET4 DLLs to be installed. MDB that might need compacted and/or repaired For more information visit would be using a JET3.5/4 database with one of the listed applications. Victor Ren is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including Excel recovery tool and word recovery tool. MDB repair can be tricky and you should rely on someone who has experience recovering them. If you do not have a backup or if you want to try to fix your file first, you can ask an expert for assistance. If something happens and your working file is corrupted, you will lose a minimal amount of information if you have recently backed up the database. While there are things you can do to minimize the odds of corruption, there is no full-proof way to protect your file. Unfortunately, MDB files are no more immune to corruption than other file types. Make sure it is stored somewhere separate from your actively updated MDB file. You need to establish a regular interval for creating the backup file. After you did all that work, you really don’t want to have to start over from the beginning. This is true even after you complete the initial set up for it. Instead of using your original file, create a copy and convert it. It is a complicated process, and it is best that you not use the source file. However, you need to know what information you want to retrieve first.Īlso like other Microsoft file types, you can convert the MDB file. You can also open it with other programs. If you want to open it with Access, simply double click on the file. Working with the MDB file is really no different than working with a Word or Excel file. Opening it will not harm your database, but you won’t be able to work with anything either. The file will provide messages when you try to use it, but you should be aware that it is there. You should never use this file to work with your data. It is a temporary file that will usually disappear when the MDB file is closed. The second file is called an LDB file.The MDB file is the one that contains the database.However, you may sometimes see two file types that look the same. You probably are already able to identify the MDB file, you just did not know that is what it is called. It can also house information from other file types. All of your tables, forms, modules, queries, macros, and data are contained within the single file. mdb.Ĭommonly called the MDB file, it holds everything about your Access database. The file type refers to the file extension. You are probably already familiar with the numerous types of files associated with the most common Microsoft applications. It contains everything that you used to create the database, such as forms and tables, as well as the background information to keep the database healthy. The MDB file is what houses all of the data for your Access Database.
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