MsgLoop.exe
(Crystal)
Background program which gets installed with the drivers for older sound cards based on the Crystal chipset (eg. Adlib Audio, Aztech, Acer). Description : A WaveStream component which is provided to hook up with the Brooktree WaveStream CD, also called the "Brooktree WaveStream Message Server". This background program is also present in the drivers for more modern sound cards but in this case MSGLOOP.EXE is called the "Conexant WaveStream Message Server". These sound cards are often found in Hewlett-Packard PCs and some Compaq PCs.
Recommendation :
There are reports of MSGLOOP preventing Scandisk and Defrag from working properly, or causing crashes at boot-up. Since we are not certain about what MSGLOOP actually does, we recommend you leave it alone unless you experience strange problems, or you have changed your sound card, in which case disable or delete it with Startup Manager, and then test thoroughly.