Vista hogs memory at loss of network connection

I have Windows Vista Home Premium SP1 and ISDN internet. When I lose my
network connection (for unknown reasons) which happens sometimes at random,
the computer seems to hog the memory and freezes momenterily and runs really
slowly while it is attempting to reconnect. The last time this happened I
got the following error. I've never recieved an error before and i am not
sure it the error report relates to previous errors. The PC runs very well
under normal circumstances, it is a Dell Dimension 5150.

My modem is an NT1 Plus II USB ISDN Modem. You could probably reproduce
this error by connecting with the same OS and hardware then manually
unplugging the modem while it is connected...

Product
Background Intelligent Transfer Service

Problem
Stopped working

Date
18/07/2008 12:50 PM

Status
Report Sent

Problem signature
Problem Event Name: APPCRASH
Application Name: svchost.exe_BITS
Application Version: 6.0.6001.18000
Application Timestamp: 47918b89
Fault Module Name: kernel32.dll
Fault Module Version: 6.0.6001.18000
Fault Module Timestamp: 4791a76d
Exception Code: e0000001
Exception Offset: 000442eb
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 3081
Additional Information 1: 00c5
Additional Information 2: 174c7319471e81e54c7c27eec0f00909
Additional Information 3: 99b3
Additional Information 4: af229a1a19228cb2ab1a3563d219757b

Extra information about the problem
Bucket ID: 661290651


----------------
This post is a suggestion for Microsoft, and Microsoft responds to the
suggestions with the most votes. To vote for this suggestion, click the "I
Agree" button in the message pane. If you do not see the button, follow this
link to open the suggestion in the Microsoft Web-based Newsreader and then
click "I Agree" in the message pane.

http://www.microsoft.com/communities....vista.general