Open Windows Mail and choose Tools \ Accounts from the menu and then hit the Add button.
You’ll obviously want to select E-mail account and move to the next screen… slide in your name.
slide in your email address, using your Gmail email address here.
You’ll note that mine is not @gmail.com because I’m using Gmail hosted for your domain.
On the next screen enter in your Gmail email address and your password.
Very important: Check the box for “Do not download my e-mail and folders at this time”.
you could easily create a new folder by right-clicking on the imap.gmail.com entry and choosing New Folder.
for this example:
Dragging a message to the folder will assign the label in Gmail.
To delete the message drag it to the [Gmail] \ Trash folder.
Otherwise it’ll just end up being pushed into your All Mail archive.
Obviously it works the other way too.
It’s not as integrated as Thunderbird can be, but very usable.