And if your using Textpad you can quickly start using it by making two tools: possibly named "RCS Check-In" and "Rcs file history"

For "RCS Check-In":

Command: path-to-cs-rcs.exe
Parameters: CheckIn $File

For "Rcs file history":

Command: path-to-cs-rcs.exe
Parameters: History $File

Use "RCS Check-In" for checking in the topmost document, even a new one. Use "Rcs file history" to retrieve old versions of the document.

/jeorgen