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Why the Left() Function Stops Working in VBA

Thursday, November 22nd, 2007

This is an interesting problem that my wife had at work recently. In a VBA-based program, the Left function suddenly stopped working with an error along the lines of "type data mismatch". Being that this is a native function to VBA, my first thoughts were that it was caused by ...

Using PostgreSQL on Windows with ADO and VB

Tuesday, January 16th, 2007

My wife's workplace is a through and through Windows shop running on Microsoft Access. As they have expanded, they have begun to bump against the inherent limits of a file-based database like Access. Currently, they are considered switching to a commercial server-based database such as MS SQL Server, but I ...

Reverse Resolution of IP Addresses with AJAX

Wednesday, June 21st, 2006

One of the things that came up recently at work is a way to resolve IP addresses to hostnames client-side without any server calls. Here are some of the possibilites that I thought off : o Using Javascript to call Java's java.net.InetAddress class to resolve (only works in Mozilla and Opera, ...

SPF and Sender-ID RFCs Published

Thursday, May 4th, 2006

After over two years of work and arguments, the IETF finally published the RFCs for SPF and Sender-ID. They are as follows: RFC 4405 - SUBMITTER SMTP extensions to be used with Sender-ID RFC 4406 - main Sender-ID draft RFC 4407 - PRA algorithm (which is what Microsoft was trying to patent - ...

InfoCard: Sender-ID All over again?

Friday, March 10th, 2006

Wired ran an article today by Lawrence Lessing singing the praises of a new Microsoft protocol called "InfoCard". I took a quick look at the technical reference and it seems very straight forward AND is all build on a bunch of OASIS and W3C standards for web services. So far, ...

The Network IS the Computer: Ajax on Desktop

Wednesday, February 15th, 2006

DESKTOP APPS BUILT LIKE THE WEB One of the upcoming big technologies in Microsoft's new OS ("Windows Vista") is XAML - an XML language for defining user interfaces. Mozilla also has a similar one called XUL. All of these are trying to accomplish the same thing - make rich applications run ...

The Upcoming “RIM Killer” from Microsoft

Tuesday, February 14th, 2006

Blogs and magazines have been abuzz recently with the upcoming "RIM Killer" released by Microsoft targeted at Blackberry users worldwide. The actual functionlity is known as "Direct Push" and is described in one of Microsoft blogs. In essense "Direct Push" is a propertiary protocol running over HTTP. However, unlike RIM's solution ...

WPA2 Drivers for Discontinued Microsoft Wireless PCMCIA Card (MN-520)

Saturday, January 14th, 2006

After struggling to find WPA2 drivers for the Microsoft Wireless PCMCIA adaptor (MN-520) for a newly rebuilt laptop, I decided to post instructions as to where to find them. Especially, since this product has been discontinued by Microsoft and for some obscure reason removed them from Windows Update. Anyway, to instal ...

WPA on Fedora Core 3 with Microsoft’s MN-520 WiFi Card

Sunday, July 31st, 2005

I had the the Microsoft MN-520 Wireless PCMCIA Card for some time but have never yet used a router with WPA support. With the move and a new wireless setup, I decided to use WPA-PSK for better security over plain WEP. Much to my suprise Linux did not support WPA ...

IETF Approves SPF and Sender-ID

Friday, June 24th, 2005

According to the records in the IETF's database (here and here), both SPF and Sender-ID anti-spam proposals were tentatively approved by the IESG (the "approval board" of the IETF) as experimental standards RFCs. It remains to be seen whether any of them will actually put a dent into spam.