.ER1 File

File extension: ER1

File type: Data

Do you have ER1 - related issues?
First check your registry for hidden errors.

Notes about the ER1 file extension:

Errors in your registry are one of the common causes for incorrect file associations on your windows system. It is highly recommended that you check your registry for file association errors (will also check for any other registry errors).

The ER1 file type is primarily associated with 'AllFusion ERwin' by Computer Associates International, Inc.. AllFusion ERwin Data Modeler is a data modeling solution that can help you create and maintain databases, data warehouses and enterprise data models.

Detailed information for file extension ER1:

Primary association: AllFusion ERwin

Company: Computer Associates International, Inc.

Identifying characters Hex: 56 , ASCII: V

Other applications associated with file type ER1:

Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
Visible Advantage

'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database

Important: When encountering any file extension issues it is always recommended that you run a free scan for Windows registry errors.

Technical data

To view technical data on file-extension ER1 click this link to expand/hide the additional area.

System Info for File Extension .ER1

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: ER1File
EXEFile: %ProgramFiles%\Computer Associates\ERwin 4.0\mmopn32.exe %1

ProgramID: ER1File
EXEFile: %ProgramFiles%\CA\AllFusion ERwin Data Modeler\mmopn32.exe

ProgramID: MMOPN
EXEFile: %ProgramFiles%\PLATINUM\ERwin ERX 3.5.2\MMOPN32.EXE

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Did you know

Everytime you install & uninstall software and modify system components your Windows registry is left fragmented with obsolete, corrupted and harmful files.

We recommend you run a free registry scan to identify the issues causing problems on your PC:

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