.dll
文件类型1：DLL Dynamic Web Page
文件说明：
Web page generated dynamically when accessed by a user; may incorporate server-side scripts, such as Perl or VB scripts that generate the HTML for the Web page.Web pages with DLL file extensions are typically hosted on Microsoft IIS Web servers; the DLL extension must be mapped to the correct scripting engine on the server in order for the page to be processed correctly.
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其它内容
.dll
文件类型2：Dynamic Link Library
文件说明：
Compiled library file containing a set of procedures and/or drivers that are referenced and executed by a program; allows multiple programs to access shared system functions through common libraries; may be dynamically linked into a program at runtime.Many DLL files are provided with the Windows operating system, and others are included by Windows programs; they allow various program functions, such as communication with external devices and hard disk input and output; they may also be referenced by Mac cross-platform applications.
NOTE:
Deleting or modifying the contents of a DLL file may cause errors within the program that references the file; for this reason, DLL files generally should not be opened or edited.打开.dll文件
Mac OS
Windows
Microsoft Visual Studio 2010Microsoft Visual Fox Pro
Resource Hacker (ResHacker)
Linux
来源：. dll文件