Rinat Sadretdinow wrote in a message to Mike Bilow:

 MB> If applications try to do their own code compression, then very bad
 MB> things will happen.

 RS> But it is still possible (I hope). I see the only way to
 RS> reach this (maybe someone guess another path): a little stub
 RS> allocates enough memory to store all the unpacked exe code
 RS> and second stub, unpacks the application segments into it,
 RS> calls DosCreateCSAlias, and then jumps to the second stub.

DosCreateCSAlias() is not intended to be used by 32-bit programs.

 RS>> Yes, but unfortunately REPACK does not pack all programs
 RS>> properly. Sometimes it turns them into unexecutable stuff
 RS>> without possibility to restore original code :-(

 MB> This is the first I've heard of this.  I've had some extensive
 MB> discussions with IBM about REPACK, and they are not aware of any such
 MB> problems.  Can you provide an example?

 RS> Sorry, it was my miss. I repacked wpp386.exe and did not
 RS> mention it had its own loader that incompatible with
 RS> standard OS/2 LX files. As the result I got exe file about 7
 RS> kilobytes long and it could not be executed by OS/2. 

Oh, the Watcom compilers are very special programs.  Watcom provides a
single main program for all platforms, and then provides a small loader
which runs on each platform.  I can't think of any other program which does
this.  Anything you make with LINK386 should be supported by REPACK.
 
-- Mike


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