PageFile_Get_Size_Info

VxDcall PageFile_Get_Size_Info
jc      not_installed      ; carry set if not installed
mov     filesize, eax      ; size of the paging file, in pages
mov     abs_max_size, ebx  ; absolute max. size of paging file, in pages
mov     max_poss_size, ecx ; max. possible size of paging file, in pages
mov     min_size, edx      ; min. size of paging file, in pages
mov     pager_type, bl     ; pager type; see below

Retrieves information about the size of the paging file. Uses Flags.

Returns with the carry flag set and zero in EAX if the pager is not installed. Otherwise, the carry flag is clear and these registers contain these values:

EAX	Current size, in pages, of the paging file.
EBX	Absolute maximum size of the paging file, in pages. The size determined by the value of the MaxPagingFile entry in SYSTEM.INI. If no value is specified, the size is set to 2 gigabytes. The size is zero if paging is off.
ECX	Current maximum possible size of the paging file, in pages, given the current amount of free disk space.
EDX	Minimum size of the paging file, in pages. The size determined by the value of the MinPagingFile entry in SYSTEM.INI. If no value is specified, the minimum size zero.
ESI	Address of a null terminated string that contains the full path name of the swap file. Do not write to this pointer. If EBX is zero, ESI is undefined.