Leading "C:" no longer hardcoded in the default installation directory.

After removing that, two testers on machines where C: is not the system
drive reported that the installer suggested their system drive instead
of C:, and that's what they wanted it to do.

Misc/NEWS

@@ -62,6 +62,16 @@ Tests
 Windows
 -------
 
+- The installer always suggested that Python be installed on the C:
+  drive, due to a hardcoded "C:" generated by the Wise installation
+  wizard.  People with machines where C: is not the system drive
+  usually want Python installed on whichever drive is their system drive
+  instead.  We removed the hardcoded "C:", and two testers on machines
+  where C: is not the system drive report that the installer now
+  suggests their system drive.  Note that you can always select the
+  directory you want in the "Select Destination Directory" dialog --
+  that's what it's for.
+
 Mac
 ---
 

PCbuild/python20.wse

@@ -203,11 +203,20 @@ end
 item: End Block
 end
 item: Remark
-  Text=Note from Tim:  doesn't seem to be a way to get the true boot drive, the Wizard hardcodes "C".
+  Text=Note from Tim:  The Wizard hardcod "C:" at the start of the replacement text for MAINDIR.
+end
+item: Remark
+  Text=That's not appropriate if the system drive doesn't happen to be C:.
+end
+item: Remark
+  Text=I removed the "C:", and that did the right thing for two people who tested it on non-C: machines,
+end
+item: Remark
+  Text=but it's unclear whether it will always do the right thing.
 end
 item: Set Variable
   Variable=MAINDIR
-  Value=C:\%MAINDIR%
+  Value=\%MAINDIR%
   Flags=00001100
 end
 item: Remark