File services Event ID 22 (VSS error) AFTER unistalling trial

Hi,
I have error comming from an Acronis dll after unistalling it? (see error below)
Class ID: {79079d5c-ef20-4952-b9fc-cfd443b38641} is not existing anymore but its still in my registry giving me error in my File services. (see attachment for a picture)

What can I do to remove this?

Log Name: Application
Source: VSS
Date: 10/12/2011 6:46:47 AM
Event ID: 22
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: PSJSDC1.PBC.com
Description:
Volume Shadow Copy Service error: A critical component required by the Volume Shadow Copy service is not registered. This might happened if an error occurred during Windows setup or during installation of a Shadow Copy provider. The error returned from CoCreateInstance on class with CLSID {79079d5c-ef20-4952-b9fc-cfd443b38641} and Name SW_PROV is [0x80040154, Class not registered
].

Operation:
Obtain a callable interface for this provider
List interfaces for all providers supporting this context
Delete Shadow Copies

Context:
Provider ID: {f782463b-33bb-4043-ad8d-60b728d26a6c}
Class ID: {79079d5c-ef20-4952-b9fc-cfd443b38641}
Snapshot Context: 4194304
Snapshot Context: 4194304
Execution Context: Coordinator
Event Xml:

22
2
0
0x80000000000000

123186
Application
PSJSDC1.PBC.com

{79079d5c-ef20-4952-b9fc-cfd443b38641}
SW_PROV
0x80040154, Class not registered

Operation:
Obtain a callable interface for this provider
List interfaces for all providers supporting this context
Delete Shadow Copies

Context:
Provider ID: {f782463b-33bb-4043-ad8d-60b728d26a6c}
Class ID: {79079d5c-ef20-4952-b9fc-cfd443b38641}
Snapshot Context: 4194304
Snapshot Context: 4194304
Execution Context: Coordinator
2D20436F64653A4454D2C205349443A532D312D352D313820