File Extension ??_

.??_ File

File extension: ??_
File type: Compressed File


Notes about the ??_ file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The ??_ file type is primarily associated with 'InstallShield' by Acresso Software Inc..

Detailed information for file extension ??_:


Primary association: InstallShield
Company: Acresso Software Inc.
File classification: Archive
Identifying characters Hex: 2A AB 79 D8 00 01 00 00 43 6F 70 79 72 69 67 68 74 20 28 63 29 20 31 39 39 30 2D 31 39 39 35 20 53 74 69 72 6C 69 6E 67 20 54 65 63 68 6E 6F 6C 6F 67 69 65 73 2C 20 49 6E 63 2E 20 41 6C 6C 20 52 69 67 68 74 73 20 52 65 73 65 72 76 65 , ASCII: * y Copyright (c) 1990-1995 Stirling Technologies, Inc. All Rights Reserve

Other applications associated with file type ??_:

  • Microsoft KWAJ compressed (Phil Katz's 'deflate')Compression format(s) used by some Windows and MS-DOS install programs. MS-DOS includes expand.exe to uncompress its install files. The compressed files are created with a matching compress.exe command. This association is classified as Archive. The identifying characters used for this association are - Hex: 4B 57 41 4A 88 F0 27 D1 03 00 , ASCII: KWAJ '
  • Microsoft SZDD compressed (Haruhiko Okumura's LZSS)Compression format(s) used by some Windows and MS-DOS install programs. MS-DOS includes expand.exe to uncompress its install files. The compressed files are created with a matching compress.exe command. This association is classified as Archive. The identifying characters used for this association are - Hex: 53 5A 44 44 88 F0 27 33 41 00 , ASCII: SZDD '3A
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

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

System Info for File Extension .??_

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: MimarSinan Codex
EXEFile: %SystemRoot%\explorer.exe /idlist,%I,%L


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