word automation decrypt document file

Remove password protection from a Word document

Use the password to open the document.

Click the Microsoft Office Button  Office button image , point to Prepare, and then click Encrypt Document.

In the Encrypt Document dialog box, in the Password box, delete the encrypted password, and then click OK.

Save the file.

https://support.office.com/en-us/article/Password-protect-documents-workbooks-and-presentations-ef163677-3195-40ba-885a-d50fa2bb6b68

I need to create a program to do this in C# or VFP, it is easy enough to do this manually.

I need to create a program to do this in C# or VFP, it is easy enough to do this manually.

Is there any reason that you can't use VBA?

What I need to do is use word automation from within an application.

Keep in mind that I have not done this myself, so what I recommend is based solely on how I generally approach VFP Automation of Office, but it might only be worth everything you had to pay for it......

I'd start in Word without VFP.

1. Open the password protected document into Word
2. Find out how to, within Word, do a SaveAs with No Password protection.

Now that you know how to do it in Word, set up to record a Macro and do the same steps again.
Now Stop recording the Macro and review it through Edit
It should show you the steps necessary for your VFP Automation to do for the 2nd part of the task.

Now on to the first part - using VFP Automation to open the password protected document
1. Create something like      oWord = CREATEOBJECT("word.application")
2. Now Open your Document   oDoc = oWord.Documents.Open(oDocument,,,,,)   && Apparently the 5th parameter can be your document's Password
Once you can Open the password protected document, continue with your VFP Automation code to implement what you learned above about saving the document.

If you get it working, we might like to see your VFP Automation code.

Good Luck