How do I match this with re

[Sunit Joshi]

Hello All
I have a problem here where I need to find the drive letters in a text
file and replace them with another letter. Now the lines can be as
long as this

6 'C:\pds\bddin64\report\mto\' 'SJOSHI'
'D:\pds\bddin64\report\format\' 'SJOSHI'

with multiple entries for path; i.e. there may be 2, as above or 1 or
more then 2. If I use the expression .*'([A-Z]:).*?', it only matches
the 2nd D: How do I get all the path groups ..??


thanks
Sunit