Blat.dll error message

Good morning all,
 

 this is my first message in that group, so thanks in advance for any assistance. I have found it on http://www.blat.net http://www.blat.net I hope someone can help me :)
 

 We are using Blat interfaced with a custom functionality called Output Management (OPM) inside Dynamics AX. Basically, what OPM does is to collect several variables like Subject, Body, sender address, file path, etc., when a user post a document (invoice, confirmation of order, etc) in AX, then send this information to Blat in order to automate the email sending.
 

 Since yesterday we are getting the next error message:
 

 Distributor: SMTP using Blat
 Could not open DLL: \\segbgsap235\opm\blat.dll
 Object 'DLL' could not be created
 Folder '' does not exist
 

 Digging into the blat website and doing some testing, I have found that another dll was missing, msvcr71.dll I have copied this file again in the same folder as blat.exe and blat.dll is located, then I have run blat -install with the server and email address parameters successfully. When I do a test on the command prompt (blat "file" -to "address") it's correctly sent. The most strange thing is that from our AX TEST environment, which points to the same shared folder (so it's using the same dll), it also works fine. Classes and code in AX is exactly the same, and the shared folder permission is open to everyone.
 

 Any idea or tip that could help me? Blat version is 2.6.1
 

 Waiting for your comments. Thanks so much and regards,
 

 Iván