Unknown winmail.dat attachment in email Tuesday, Jul 29 2008 

From my colleague I received an email but with unknown type : winmail.dat
He should send me office document.
I asked him to sent it again, he forwarded the email again but I still received winmail.dat in attachment.

After googling about this I found out that winmail.dat is generated by Outlook (I using thunderbird).
From About.com :

It’s Outlook’s fault, in a way. Or the recipient’s email client’s. If Outlook sends a message using the RTF format (which is not very common outside Outlook) for bold text and other text enhancements, it includes the formatting commands in the winmail.dat file. Receiving email clients that do not understand the code therein display it as a stale attachment. To make matters worse, Outlook may also pack other, regular file attachments in the winmail.dat file.

Fortunately, you can get rid of winmail.dat altogether by making sure Outlook does not even try to send mail using RTF.

And there’s also a way to disable this feature on Outlook. You can open it for more detail.
I would focus on how non-Outlook user can handle this format.
I know I can not ask all Outlook user who sent me attachment to turn off this feature.

So I search a program to open this content type “application/ms-tnef”.
I encounter this good console program : WMdecode
You just need to extract this. When running the program it’ll search winmail.dat in current folder and extract it.
The program working great although it just console application, no GUI.

Other tool I search is add on for Thunderbird.
I found : LookOut
This add on will automatically decode the winmail.dat
Also working great but it won’t decode winmail.dat in emails that you received before installing the add-on.
So I think it’ll only decode winmail.dat on new email received.

Cheers 🙂


Microsoft + Yahoo = ? Tuesday, Feb 5 2008 

Microsoft planning to buy Yahoo for $44.6 billion. Until now Yahoo hasn’t give final answer it.
I’m wondering why do Microsoft want to buy Yahoo, is it for fighting Google?
Or Microsoft just want to kill one of his  rival.

Let’s see
IM : Microsoft has Windows Live Messenger, Yahoo has Yahoo Messenger.
Search Engine : Microsoft has Live Search, Yahoo has it’s own search engine.
Email : Microsoft has Windows Live Hotmail, Yahoo has Yahoo Mail.

Let’s wait for Yahoo’s final answer.
And how will Google respond about this 🙂

VAS (Value-Added Service) introduction Wednesday, May 30 2007 

Untuk yang bergelut di dunia Content Provider mungkin istilah VAS / VASP mungkin tidak asing lagi.
Buat yang ngerti tentang VAS ini maka mengutip dari Wikipedia.org :

A value-added service (VAS) is a telecommunications industry term for non-core services or, in short, all services beyond standard voice calls. On a conceptual level, value-added services add value to the standard service offering, spurring the subscriber to use their phone more and allowing the operator to drive up their ARPU. For mobile phones, while technologies like SMS, MMS and GPRS are usually considered value-added services, a distinction may also be made between standard (peer-to-peer) content and premium-charged content.

Value-added services are supplied either in-house by the mobile network operator value-added service provider (VASP). VASPs typically connect to the operator using protocols like Short message peer-to-peer protocolshort message service centre (SMSC) or, increasingly, to a messaging gateway that allows the operator to control and charge of the content better. themselves or by a third-party (SMPP), connecting either directly to the short message service centre (SMSC) or, increasingly, to a messaging gateway that allows the operator to control and charge of the content better.

Singkatnya para Content Provider (CP) membuat layanan dengan bekerja sama dengan operator dan berkomunikasi dengan protocol tertentu yang disepakati.
Dengan demikian maka CP dapat memberikan layanan kepada pengguna ponsel dan melakukan charging sesuai layanan tersebut.

Layanan-layanan yang populer saat ini:

  • Download wallpaper/image
  • Download ringtone/music
  • Quiz berhadiah
  •  Ringbacktone (VAS yang palink populer/menguntungkan didunia?)
  • Download aplikasi/game mobile
  • Dll -> Layanan-layanan unik lainnya

Demikian pengenalan mengenai VAS untuk hari ini ^^