1. When confronted with a DLL file problem, a copy of some Microsoft media may already be owned from which the file can be extracted, [Definition and Explanation of a .DLL file (Q87934)].
2. To determine whether the file is a Microsoft issue, access the DLL Help Database, enter the file name -- including extension in the space provided, and then press Enter (correct spelling and punctuation is recommended). If a list is rendered, simply determine from what media is shown and that currently owned and extract a copy, [How to Extract Original Compressed Windows Files (Q129605)].
3. If the file is unknown there and you know your system requires it, it's usually advantageous to simple uninstall and reinstall the applicable program for which the file belongs. Search the Google_Group Web site for resources.
Pardon ma ACKsent, ah'm frum Austin, Tex_As, USA
....its been my policy to view the Internet not as an 'information highway,' but as an electronic asylum filled with babbling loonies.