The PDM file extension can refer to files created by either Microsoft Visual Basic or Sybase PowerDesigner. In both Visual Basic and PowerDesigner, the PDM file plays a database-like role, storing information about installation and deployment and containing references to other files.
The PDM Extension in Microsoft Visual Basic
Microsoft Visual Basic uses PDM files to deploy information, script names, installation locations and one or more scripts relating to a Visual Basic program. When new deployment packages are created for a program, Visual Basic will append information about the new scripts to the PDM file.
The PDM Extension In Sybase PowerDesigner
Sybase PowerDesigner uses PDM files to store database information relating to designs created with that software. PDM files also contain references to other files, such as database definition and model definition files.
Most Common Usage
The PDM extension for Microsoft Visual Basic is by far the most common of the two. Unless the user is in the industrial modeling or data warehousing fields, he is unlikely to have access to or use for Sybase PowerDesigner, whereas most Windows machines come with Microsoft Visual Basic already installed.
If a Visual Basic-created file is in ASCII format, you can also use Notepad to view the file.
All PDM files created using Sybase PowerDesigner can also be opened with Quest QDesigner.
PDM files created by Visual Basic are not viewable with PowerDesigner, and vice versa.
Opening and Using PDM Files
Right-click on the file you wish to open, mouse over "Open With" and choose the program with which you want to open it.
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