UPDATE (2010-09-29): Microsoft has release the fix. It should be available through Windows Update.
More Info: http://weblogs.asp.net/scottgu/archive/2010/09/28/asp-net-security-update-now-available.aspx

Microsoft Security Advisory just announced a vulnerability in ASP.NET that can lead to information disclosure. You can read the complete announcement at http://www.microsoft.com/technet/security/advisory/2416728.mspx

Important: Please make sure you read the Workaround section and do appropriate action based on your websites’ config.

Additional information can also be found at Scott Gu’s blog post http://weblogs.asp.net/scottgu/archive/2010/09/18/important-asp-net-security-vulnerability.aspx

asp.net · security

Disk Cleanup tool is not installed by default on Windows Server 2008 R2. To make it available, you need to add a feature called Desktop Experience.

Note that in the screenshot above it listed as Installed because I have just installed it.

Windows Server 2008 R2

I shocked when I found that I couldn’t access Umbraco control panel of one of the most important websites that my client has. It threw “Object reference not set to an instance of an object” error once I successfully logged in to the control panel.

After making backup and small research I found a way to recover from that annoying thing. The workaround was recycling the Application Pool that the website use.

asp.net · Umbraco

Simple way to know whether SQL Server is 32-bit or 64-bit is by executing the following script:

select SERVERPROPERTY(‘edition’)

It will then return the Edition of SQL Server installed. If it’s 32-bit it will just return the Edition name.

If it’s 64-bit then it will have (64-bit) added after the Edition name.

sql server