VerifyPKCS7

VerifyPKCS7 is a small, straightforward application designed to provide you with an easy way to check PKCS#7 signatures. It uses the Microsoft .NET libraries and the built-in certificate store.
The program features a minimalistic user interface and does not need to be installed on your computer before use.

Simple utility for verifying PKCS#7 signatures

Because the program takes advantage of the native Windows libraries and the built-in certificate store, it allows you to avoid using separate certificate stores for Windows applications and OpenSSL.
VerifyPKCS7 is very simple to use, and you should be able to check your files with a couple of mouse clicks. It offers support for drag and drop, which means you can just drag a file to the application window to verify it instantly.
Once that is done, you can specify the format of the separate signature file. The program remembers all the extensions that have been entered in this field, so you can just select them from a drop-down list in the future.

Lightweight application that can be deployed instantly

There is no need to install VerifyPKCS7 before use, as you only need to unpack the archive and launch the contained executable file. Because of this, the program is great for users who are looking for a quick and easy method of checking PKCS#7 signatures.
However, if it was not already evident, it is worth noting that that .NET Framework needs to be installed on your machine before you run the application.

Minimalistic user interface

Not surprisingly, VerifyPKCS7 has a very straightforward layout, which is to be expected given the application’s simplicity. First-time users should have no problems figuring out how to check their files, as the program’s functions are self-explanatory.
Overall, VerifyPKCS7 is a simple, intuitive utility that enables you to verify PKCS#7 signatures. It uses the Microsoft .NET libraries and the Windows certificate store, alleviating the need to manage separate certificate stores for Windows applications and OpenSSL.