P7mviewer Windows 10

Many people share .p7m files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .p7m file can be edited, converted or printed with. On this page, we try to provide assistance for handling .p7m files.

P7mViewer 4.5 is a standalone application designed to view files and e-mail messages encrypted and/or signed in compliance with S/MIME standard.: General features: Displays content of smime.p7m and other files with file extension p7m. ' (Windows 10) or 'Windows cannot open this file' (Windows 7) or a similar Mac/iPhone/Android alert. If you cannot open your P7M file correctly, try to right-click or long-press the file. If you cannot open your P7M file correctly, try to right-click or long-press the file.

1 filename extension(s) found in our database.

  1. Displays content of smime.p7m files and other files with file extension p7m: Reads signed and encrypted messages: Diagnoses undecrypted messages: Accepts Microsoft Outlook® messages: Fully functional 30 days trial license: Detailed online help system.
  2. P7mViewer Download p7mViewer 4.5 displays the contents of smime.p7m files and other files encrypted or signed in the S/MIME standard. It gives easy access to encrypted or signed email messages in web-based mail.

.p7m - PKCS #7 Encrypted Message

The P7M data files are related to p7mViewer. P7M file is a PKCS #7 Encrypted Message. The P7M encrypted e-mail messages have a null body with an attachment smime.p7m. This attachment probably contains the encrypted message.

Data files
- / -
PKCS #7 Encrypted Message related extensions:
Connectivity Memory Model Update Timing File
SimEnhancer Profile
Webshots Image Collection
RiTE Ascii Model
SmartCAM Custom Control Panel File
Hasbro My3D File

Naturally, other applications may also use the .p7m file extension. Even harmful programs can create .p7m files. Be especially cautious with .p7m files coming from an unknown source!

Can't open a .p7m file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:
To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

  • Open Control Panel > Control Panel Home > Default Programs > Set Associations.
  • Select a file type in the list and click Change Program.

The .p7m file extension is often given incorrectly!


According to the searches on our site, these misspellings were the most common in the past year:

p7, pim, pm, pm7, pum, pym

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Perl Module
PM Bitmap Image
XV Visual Schnauzer Bitmap
Python Macro File
Avid Pro Tools Plugin Map
Pegasus Mail Folder State

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

P7mviewer Windows 10 64-bit


If you have useful information about the .p7m file format, then write to us!

Please help us by rating this page below.

P7mviewer Windows 10 Versions

The digitally signed files using P7S or P7M format has the mime-type application/pkcs7-signed-data type. Details about the standard regarding the creation of such structures are published on RFC 3369, standard initiated by RSA Security Data Inc.

P7S Viewer lets you view files signed by P7S Signer or other signature software.

P7S Viewer Requirements:
– Microsoft .NET Framework 4.0 available here
– Windows XP or later (including Windows 10)

The license for P7S Viewer is a lifetime license. There is no additional cost like monthly / annual fees or fees per use. When a new version is released you can continue using your purchased version as usual.

Windows 10 Update

30 Day Money Back Guarantee – If you are not pleased with our software for any reason, you are entitled to our 30 day no hassle, no questions asked, money back guarantee.

ProductPrice (€)Buy with PayPalBuy with credit card
P7S Viewer

29 EUR
Technical SupportThe technical support is free for 12 months after purchase

If you like to pay by Bank Wire Transfer, please fill this form.

P7m Viewer Windows 10 Pro


P7mviewer Windows 10 Iso

Download P7S Viewer
(latest version: 7.4)

P7mviewer Windows 10 Screenshot

Useful links: