Hi friends, i had similar problem with the exception of reinstalling windows xp and so express scribe and tried everything as per my knoweledge as
1. restarting computer (don't work)
2. reinstalling scribe (don't work)
3. reloading excribe exe and installing (don't work)
4. downloading dss32 (don't work)
5 downloading dssexe (don't work)
6. downloading transnet codec (don't work)
7. downloading rhetcodec (don't work)
8. tried compatibilty option (don't work)
Any idea and i had same problem with new windows xp pc