.OCX - File Extension for OLE Control Extension

Q

What is OCX? OCX, short name for OLE Control Extension, is used as the file extension for OLE (Object Linking and Embedding) Control Extension files. .OCX files are binary files that are used by Windows systems or applications ActiveX control objects. See the sample .OCX file included below.

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A

File Extension: .OCX

MIME Type: application/octet-stream

File Content: OLE Control Extension

.OCX files are OLE Control Extension files saved as binary files. Here are the first 128 bytes of a sample .OCX file dumped in HEX values:

4d 5a 90 00 03 00 00 00 04 00 00 00 ff ff 00 00 MZ..............
b8 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 e0 00 00 00 ................
0e 1f ba 0e 00 b4 09 cd 21 b8 01 4c cd 21 54 68 ...........L..Th
69 73 20 70 72 6f 67 72 61 6d 20 63 61 6e 6e 6f is.program.canno
74 20 62 65 20 72 75 6e 20 69 6e 20 44 4f 53 20 t.be.run.in.DOS.
6d 6f 64 65 2e 0d 0d 0a 24 00 00 00 00 00 00 00 mode............

.OCX OLE Control Extension file sample: Click sample.ocx to download.

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