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

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