CalComp Windows 907 Vector Driver Before getting started it is recommended you print two documentation files. 1. WIN907.DOC --- WIN907.DOC is the users manual for the CalComp windows driver. This is an ASCII text file. 2. READTEST.907* -- READTEST.907 is documentation describing two test files, that are included, to test the driver and the hardware connection. This is an ASCII text file. * READTEST.907 is included in the WIN907 users manual as Appendix A.