C:\1st drive - 4 SSD Raid 0 array - Windows 7 Ult. 64 bit
D:\2nd drive - 640 GB Western Digital - data
E:\3rd drive - 1st partition 640 WD - Windows 7 Pro 64 bit
F:\4th drive - 2nd partition 640 WD - Windows 7 Ent 64 bit.
My question -
Can I safely access and use a program installed on C:\ from E or F?