Get Network Full Name via Macro

Hey guys,

I need a little assisstance, probably a quick fix.

Need to populate a TextBox with the full name of the current windows user (Not the username)

When I lock a computer that's on the Network at my job, I see FirstName LastName (Company\WindowsUserName) ...I need to it to pull up the FirstName and LastName.

I know Environ("username") get the username..what about what I need?

PS: I had this functionning via a macro that was pulling this data from Outlook Exchange but it doesn't seam to be working on every PC at my work..Causes Cannot find library error for some reason..

THanks,