File Extension ASO

.ASO File

File extension: ASO
File type: Object


Notes about the ASO file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The ASO file type is primarily associated with 'Assembler'.

Detailed information for file extension ASO:


Primary association: Assembler

Other applications associated with file type ASO:

  • Astound Dynamite (Objects)
  • Flash (Cache File) by Adobe Systems IncorporatedAdobe Flash, initially known as Shockwave Flash and popularly called simply Flash, refers to both the Adobe Flash Player and to the Adobe Flash Professional multimedia authoring program. The Flash Player, developed and distributed by Adobe Systems (which acquired Macromedia in a merger that was finalized in December 2005), is a client application available in most common web browsers. ASO files are cache files used during Flash development, containing compiled ActionScript byte code. An ASO file is recreated when a change in its corresponding class files is detected. They are normally deleted after a compile.



To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension ASO click this link to expand/hide the additional area.

System Info for File Extension .ASO

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: O2CObject
EXEFile: rundll32 %SystemRoot%\System32\O2CPLA~1.OCX,DisplayObject %1

ProgramID: Simply Accounting Import File
EXEFile: %ProgramFiles%\Winsim\import.exe %1

ProgramID: Simply Accounting Import File
EXEFile: %ProgramFiles%\Winsim2005PRO\import.exe %1


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