Method 1: Using VB.NET

The following code sample shows how to open password protected word using VB.NET
[VB.NET CODE STARTS]
Dim objWord As Object
Dim strPassword as string = "PASSWORD"
objWord = CreateObject("Word.Application")
objWord.visible = False
objWord.application.WindowState = 2
objWord.application.DisplayAlerts = False
Try
objWord.Documents.Open(PasswordDocument:=strPassword )
Catch ex As Exception
Msgbox ("Cannot open word document" ,vbExclamation , "Password Protected")
End Try
[VB.NET CODE ENDS]

Method 2: Get word password from the source

The following steps sample shows how to get the password from the source.
Step 1: Check with the word document source for the password.
Ask yourself where does the locked word document come from? Supposing it created by someone else, then ask the creator for the password. If your own are the word document source, you will need to locate the lost password.
Step 2: Verify the password with the source.
Make sure you have the right password on hand. Verify the password can save you time. The other reason to do so is that you never know they might have given you the wrong password in the first place.
Step 3: Enter the correct password.
Type in the correct password at the "Enter Password To Open File" dialog box. After you have entered the password, click the OK button.

Method 3: open password protect word document with word password recovery

The following steps tell you how to remove word password by word password remover
Step 1: Open the word document which you wish to password protected and encrypt.
Step 2: Click the "File" tab, then Click on the "Info" option. On the right menu click on the "Protect Document" button under "Permissions", and then select the "Encrypt with Password" option.
Step 3: When the "Encrypt Document" dialog appears, set a password for your word document and then click "OK" button.
Step 4: After password protecting your word document, click "Save" or press Ctrl+S to save the document. Now your word document is password protected. You’ll see the following message "A password is required to open this document" under "Permissions".

I try the above methods, the third method is the fastest to open password protect word document, besides, Word password recovery is the safest to crack word password.

Related Article:
http://www.recoverlostpassword.com/article/excel-password-unlocker.html
http://www.recoverlostpassword.com/article/remove-word-password-in-word-2010.html

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