DISM command can be used to Disable Windows features on Windows 7 with SCCM 2007 TS.
Here is the syntax for disabling Fax Services:
DISM /online /Disable-Feature /FeatureName:FaxServicesClientPackage /Quiet /NoRestart
This syntax can be added in TS component and it works for Windows 7 x86 architecture.
For Windows 7 x64, SCCM 2007 reports an error:
The operating system reported error 11: An attempt was made to load a program with an incorrect format.
In order to resolve the error, Disable 64-bit file system redirection check box should be enabled.